I really know nothing about GD but am pretty desperate for some sort of help. DD is almost 18 months and maliciously pulls my hair, very hard. Keeping it pulled back doesn't help, she will grab it anyway. We talk about being gentle, she signs gentle, and shows me how she can touch gently, but still pulls meanly. She has pulled out chuncks and thinks it is very funny. I have tried time outsand they seem to have a short term effect (sometimes) but she ultimately keeps doing it. At such a young age, is there any way to teach this is unacceptable? I am so tempted to slap her hand after she does it over and over and over but I don't want to be that person. Help!