I don't know how this arachnophobia developed, but every time I see a spider I get all fight-or-flighty. A few weeks ago I was driving on the freeway when one spun down it's web right in front of my face and I almost crashed. Then after it was gone I almost vomited, 'cause that reaction invariably hits me shortly after the panic.

It's really smurfing annoying. My rational mind likes spiders.