The spiders never warn before biting. Especially the one that bit me while I was asleep. I still have a small swelling there.
I ordered a book on spiders in my geographic area. It says that they don't bite unless you get into their nest. I beg to differ with that. The one that got on my hand as I took my mail out of my mail box was being aggressive. Also the one that bit me during the night was not in her nest. I don't sleep in a spider web!
Whiskers, I suppose it has affected my security while sleeping and at other times.