My mom dropped one of mine, pretty much threw it actually. Luckily it was only about a foot onto my recliner. No more holding snakes for my mom!!!Unfortunately she's the one who comes over to check on my snakes and cats when I'm on vacation...lol. I have heard that they can become scared/nervous about being held after something like that happens, but truthfully, I don't think they are smart enough to put two and two together like a dog or cat could. Even a rat could figure out the dangers of being held after something like that, but I have my doubts about a snake catching on. Also, about him possibly being injured, I doubt a vet could have done much about internal bleeding or bruising. I would have done the same thing you did, besides the dropping it part, lol. *Knock on wood*
Is he still doing fine?