Most humans have a primordial sense of fear when it comes to bugs, I believe it's because they're so alien to humans. Also it's a known fact that we're spiders as big as the domestic moggy humanity could well be on the way towards extinction. The most poisonous spider of all however is apparently the common garden spider, the reason why it's harmless to humans however is that it's madibles are so weak they cannot puncture even a single layer of human skin. I usually leave 1 or 2 spiders in the house to get rid of moths/flies ect but I am blindingly disturbed by the abomination of nature that is the Daddy Longlegs, these creatures have the body of a spider and worse, can fly they're also just ewwwwwwwww in terms of flying I shudder at the thought of them. Mosquitos annoy me too because I hate being bitten.