Stay with me here.

You are sitting in a chair and are sitting on your hands so your arms are straight down and thus your hands would be about 1/3 of the way down the backs of your legs. At the tip of your left index finger is a spot that's not quite inner thigh, but it's not quite just leg either.

Anyway, at that spot on my left back-thighish area I have a bruise that looks like the ones that were on my arms after my arterial IV's: Purple-black and about the size of a computer mouse.

Anybody got any ideas where I might have gotten that?