It's harder to fear things when you understand them, this is also true about humans who are different from you. XD
Then again depends upon where you live, in NA there are really only 2 kinds of (potentially) deadly venomous spiders so statistically, if you see a spider, it's probably neither a recluse or black widow. So there isn't a lot of logical reason to panic seeing a spider here as long as you know how to ID those two. Most huge spiders you will see are totally harmless and healthy to have around because they prey upon pests. In other localities of the globe you may encounter many more deadly things than here *coughAustraliacough* and probably should run if you see a snake or spider, lolol.
We also only have... 3 kinds of really venomous snakes in NA, so not a lot of reason to freak out over them either. I'm probably spoiled and would get bitten by everything if i lived in a dangerous animal zone cos I'd go out and poke them like Steve Irwin.