Petrifying Shad's always fun, but sometimes I feel nice enough to let him move, so he'll end up a golem. Sometimes, though, even when I'm feeling that nice, I'll find ways to mess with him: in this case, I had a friend of ours put a curse on him so that, anytime he stopped actively moving, he'd instantly snap back to the flexed pose he was first petrified in.
It's the best of both worlds, don't you think~?