No girl has ever found out. To get them to avoid touching, ha I have an exaggerated story from a few years ago that I use. Senior year in high school I got hit in the head with a skateboard one night and my friend and i got into a car accident that same night as well. If a girl goes for my hair I just make an uncomfortable face and say 'Hey do you mind not doing that, I kinda got into an accident and it freaks me out now when people do that'

It's lame but it works, I just say I have some scars that I cover up and still are nerve sensitive. No one's ever known man, no worries.