Never had the pleasure yet and I've been keeping balls for awhile. I've been bit or stung by a ton of things (burms, scorps, bloods, tarantulas) but never a ball The only one I have that is tempermental is my male pastel. He is ALWAYS hissy. I'm pretty sure he wants to bite me. I just pick him up anyway. Maybe me and him are both contempt that he is a grump. If one were to bite me out of my collection it would be him. But he hasn't yet