September's mouse myth-buster earned its sequel, and Halloween week hands us the obvious subject. Spiders carry more folklore than the rest of household pest life combined — some of it harmless fun, some of it driving real decisions (and real panic calls) badly. Yesterday's post handled the venom question with a straight face; today's takes the rest of the mythology, rapid-fire.
Myth 1: You Swallow Eight Spiders a Year in Your Sleep
The internet's most durable spider fact is pure invention — and beautifully, the popular origin story (that it was planted to demonstrate how fake facts spread) appears to be itself a fake fact about a fake fact. The biology settles it regardless: a sleeping human is a wall of vibration, heat, and exhaled CO2 — everything a spider's sensory world says to avoid. Spiders don't seek mouths; they flee breathing. Sleep easy.
Myth 2: Daddy Longlegs Are the Deadliest Venom, With Fangs Too Small to Bite
The campfire classic, wrong twice over — and wrapped in a genuinely useful ID lesson, because "daddy longlegs" names three different animals: harvestmen (the one-piece-body ones in the garden — not spiders at all, no venom glands, no fangs, cannot envenomate anything), cellar spiders (the wispy basement ones — actual spiders whose venom tested out as thoroughly unremarkable; the "deadliest" claim has no study behind it, ever), and crane flies (the giant "mosquitoes" at the porch light — flies, no venom, barely functional mouths). Three animals, zero deadly, one immortal myth.
Myth 3: You're Never More Than Three Feet From a Spider
Overstated version of a real truth. The real figure comes from habitat density studies — grassland can hold astonishing spider populations per square metre — but your kitchen is not a meadow, and "never more than three feet" fails constantly indoors. The honest version: spiders are nearly everywhere outdoors and present in most structures, at distances usually measured in rooms, not feet. Somehow the true version is still Halloween-appropriate.
Myth 4: House Spiders Come In From the Cold Every Fall
Half-myth with a September guide behind it: the fall spider surge is real, but it's mostly resident house-adapted species maturing into visibility, plus wandering males on mate patrol — not an outdoor refugee migration. The practical upshot the myth gets wrong: sealing helps at the margins (and serves the whole exclusion agenda), but the October spider in the tub mostly didn't come from outside, and the population isn't "worse this year" — it's October every year.
Myth 5: Spider Egg Sacs in the House Mean Thousands of Spiders Soon
Numbers true, outcome false. A sac can hold hundreds of eggs — and indoor hatches almost entirely vanish: spiderlings cannibalize, starve, and desiccate in the indoor environment, with survivors measured in single digits. The response to a found sac is the September guide's calm one: remove it with the web (vacuum or cup), note what it says about the local insect supply (the indicator logic, always), and skip the torch-the-house impulse the internet recommends.
Myth 6: Conkers, Osage Oranges, and Peppermint Keep Spiders Out
The natural-remedies guide's verdicts extend seamlessly: horse chestnuts and hedge apples show no repellent effect under testing (the folklore is pure placement coincidence), peppermint oil rates the same "fades in days, moves them inches" as its rodent version, and ultrasonic devices complete their perfect no-evidence sweep across every pest category this series has covered. What actually reduces indoor spiders: reducing their prey (lighting management, the perimeter program), removing webs consistently (rebuilding costs them), and sealing — the boring trinity, as always.
Myth 7: Spiders Are Insects / All Spiders Spin Webs
The classroom pair, quickly: spiders are arachnids (eight legs, two body segments, no antennae — and the distinction matters practically, because insect-targeted treatments underperform on them, one reason "spray for spiders" disappoints and the conditions-based approach wins). And web-spinning is a minority lifestyle: wolf spiders run prey down, jumping spiders ambush with the best eyes in the arthropod world, sac spiders hunt the walls at night. All spiders make silk; most don't make the Halloween-decoration wheel.
Myth 8: A Spider in the Sink Came Up the Drain
The bathtub spider climbed in and got trapped by the slick walls — drains connect to water traps no spider crosses. It's in the tub because the tub is a pitfall, which is also why the humane exit (the towel-over-the-edge ladder, or the cup) beats the tap. Related rescue fact while we're here: the "drowned" spider revived on the soap dish wasn't faking — spiders survive surprising submersion in metabolic slowdown. Respect the comeback.
Myth 9 (True): Some Myths Undersell Them
The flip side the mouse post established — the true facts stranger than folklore: spiders have been recorded ballooning kilometres high on silk-and-electrostatic flight (the gossamer mornings of the September guide are the landing traffic); jumping spiders demonstrably plan routes and see colour better than dogs; silk outperforms steel by weight so dramatically that materials science keeps borrowing it; and the global spider population's annual insect consumption outweighs humanity's meat consumption — the free-pest-control argument of this whole series, at planetary scale. The decorations undersell the originals.
Frequently Asked Questions
Which myth drives the worst real-world decisions? The recluse panic from yesterday's post (it misdirects wound care) and the egg-sac alarm (it drives whole-house fogging — the foggers verdict from the archive stands: wrong tool, real costs, for a non-event). Calm IDs beat both.
My kid is now terrified of spiders from Halloween content — any help? The jumping spider is the gateway: visibly curious, head-tilting, internet-beloved — fear rarely survives watching one watch you back. The cup-and-card relocation ritual also works: handing kids the rescuer role reframes the whole relationship.
Are fake cobweb decorations a problem for real spiders or birds? Genuinely yes outdoors — stretched synthetic webbing entangles birds, bats, and beneficial insects. Keep the fake webs indoors or on covered porches, dense and taut rather than wispy, and down promptly in November (the decor-teardown calendar from the Thanksgiving post applies to Halloween too).
Is there any myth you WISH were true? The three-feet one, honestly — a property where beneficial spiders were that evenly distributed would need a lot less of everything else in this archive. The free workforce is real; it's just less punctual than the myth.
The Scariest Thing About Spider Myths Is Their Survival Rate
Eight-legged folklore outlives every correction — but your decisions don't have to run on it. Keep the decorations, lose the panic, and let the resident web in the basement corner keep doing what it's done all along: quiet, unpaid, slightly spooky pest control.
Summit Pest Control treats conditions, confirms IDs, and busts myths year-round across Guelph, Cambridge, KW, and surrounding areas.
Call (226) 780-6446 or request a quick estimate today.