I've heard someone get attacked by a squirrel before, hahaha. The human victim was fine afterwards and so was the squirrel. He had a 2nd incident later and then my friends made him live outside. I think he wanted that anyway because the wild was calling him and he was sick of being their pet, lol. He was cool during his pet phase though. One time I visited and he flung himself on to me, climbed all over my back, and sat on my shoulder.