Once when my kids were little, I found a little garter snake that I put in a bucket to show them, before I put it out back near a wood pile. Of course, my daughter asked "will it bite?" and I said "No honey. It's just a baby. Let me get it out of the bucket to show you." I reached in and the little thing bit my finger and was hanging on as I lifted my hand out to show them. Needless to say, she hasn't believed me since.
I was lifting up a concrete rain gutter from my yard Sunday, looking for worms to feed my catfish, and instead found six of these critters all huddled together, about 9-11" each: