I actually have a bit of a phobia about staples. Back in 1985, during the superbowl when the Bear won, I was crawling under the coffee table and caught my foot on a staple. Ripped my foot open and I had to get stitches, which is the only time I've ever had stitches. Hurt like hell, so now whenever I see an open staple just sitting somewhere (esp on the floor) it creeps me out.