Rocks and Spiders

I moved a bunch of rocks last weekend. These rocks have been sitting underneath what will one day be my kids' swingset. They were there way too long! I built a stone retaining wall, but very slowly--I'll post a picture some day... Anyway, I noticed something when moving the rocks: if there are leaves attached to the rock, check for spiders. I saw lots of them, mostly black widow spiders. The largest black widow spider that I saw had a leg span of about an inch and a half! Yes, I was wearing gloves. Yes, I killed lots of spiders.