Don't have your 4- (almost 5!) year-old pretend to be your hair stylist. My sister learned this the hard way last night.
It took me an hour and a half to detangle her hair from the comb, which had been twisted through several times. Amanda called me in a panic, certain we'd have to cut it out. But I worked at slowly releasing just a few strands at a time, utilizing a giant tw0-pronged meat fork to loosen the hair at the base of the comb. Eventually, I was successful. But not before taking some pics of the deed. I'm evil, aren't I? But not as evil as the pretend hair stylist. Look at this jerk: