Well, they should respect your wishes, I mean, it is your hair. I'm surprised people don't like to touch my hair... It's more than two feet long. XD Though there was this one time this annoying kid sat behind me on the bus and he was petting my hair... Also, prior to that he had tried to take my art project. He threatened to scream if I didn't give it to him, and when I ignored him, he just didn't scream and he went away.
My whole class does this You walk up behind someone and say PRETTY HARRRE.. and rub your hand down their head as hard as you can....it hurts. We also had a fight over wether cheesecake was a pie or cake (i started that)(its a pie) and a fight about how Ramen noodles is pronounced.(we ended up calling the company) ....... my class is so weird XD