in highschool or on a side walk i would play this game where i could only put one foot on a tile at a time. and if i put two on one tile i'd go back one tile. i did this often to stall going to class after i went to the bathroom.
oh and i did something similiar to the surfing hand thing. except i would pretend my hand was a little dude and he could jump from stop sign to telephone pole and climb the telephone wires. if he couldnt climb or jump on anything he'd loose a life
oh and sometimes when i masturbate i pretend i'm choking someone