Well... While I was getting ready for bed I sucked it up. I called Ed over to me in the bathroom. I wiped off his former bump with a damp cotton ball, and looked at it again. Since I had last looked at it (Before dinner and a movie) it's clotted nicely and I wiped off all the excess blood in his fur. Now it hardly looks like anything at all except a little skin scrape that's healing over. I think unless things change I'll just let it go this way and have the vet look at it next week. It didn't appear to hurt at all me looking/poking/wiping at it. On that note I think I'll go to bed.