My ds is a smacker, puller, roller-arounder.

It's fine most of the time, but if he's poopy I have to move very quickly or else I end up with some major cleanup! LOL!
After his first hypo surgery, he was so sore and swollen, with bandages and stitches, etc. It took 2-3 people to change him for about a week, mostly so we could keep his hands away so he wouldn't hurt himself.

I remember feeling so bad for him -- the poor kid just wanted to check and make sure he still had all his parts -- after all, he knew SOMETHING had been done to his penis (he must have known, kwim?) -- and we wouldn't let him.

I'm sure he was pretty relieved when a week or so later we finally let him have his hands back and he was able to check everything over. That also let me know how he was doing -- as soon as he was smacking full-strength again I knew his pain was gone.