1-4 are cool, but I don't like the incessant butt scratching (seriously?! why?? lol). It would be cool if we had other random actions as well as more number functions. Like tongue-sticking-out or fingers-wiggling-in-ears / thumbing ones' nose (if one has a nose), etc. Or hat-tipping. Or dancing a little jig. Or pat-a-cake / chinese checkers / other hand games.
And maybe make an option to disable bum-scratching or choose other things to scratch besides, like nose or head. I don't mind if my avvie has an itchy head but seriously? My butt doesn't get itchy that often irl. My head is *always* itchy. No I do not have lice.
Or we could have a "lice" debuff that goes with something hair related? lol... I don't know. Just throwing out some ideas. =)