My son who is 2 years keeps ripping out my hair with his teeth and starts to chew and swallow it. When I let him lay in bed with me he’ll do it, or whenever he’s close to my hair at least. He’ll only ever rip the hair out from the top or my scalp, never from the ends of my hair. Is this just toddler behaviour? It has been going on for about a month now and I’m not sure why. I hear a lot of toddlers pulling out their own hair but never pulling anyone else’s? I tell him off and try to stop him when I think he’ll do it but it doesn’t seem to work