Holy shit. I'm on full Hobo spider (poisonous) alert! I pulled my computer chair out, and under the desk was a huge Hobo spider! I grabbed my tennis shoe and tried to squash it, bumping my head on my keyboard tray, missing the rotten bugger and it ran between two desks. I saw it hovering in the crack... so I grabbed my Wasp/Hornet spray and got the first half of it before it ran behind the other desk - which is, by the way, almost immovable! SHIT! I put a trap on either end of the desk, so hopefully it will get stuck on one of those... geez, I'm gonna have really sweet dreams tonight! Don't know why these stupid spiders like it here so much, I keep things clean and virtually dust-bunny-free!