My 3 year old has always sucked his thumb and twiddled his hair (and anybody elses he can get hold of). Problem is that he regularly twiddles out bald patches! We've had to keep his hair really short but he HATES the hairdresser, it's the only time he has a tantrum. He's a happy, easygoing, secure child...anybody know why he does it? I've regularly gone out with dreadlocks and not realised and at playgroup he sits twiddling other children's hair when he can get close enough - they all pile out at home time and it's pretty obvious who my little angel has been sat next to! The hair does seem to grow back but am worried it won't one day. Anybody got any advice or ideas?