An interesting piece showing the futility of selling long hair.
http://www.bbc.co.uk/news/magazine-17043055
An amusing coincidence... just the other day I was walking thru a parking lot when a lady sitting in a truck (waiting for someone, I suppose) commented that if I wanted to sell my hair, she'd like to buy it, following with complimenting it. I just said, "Thanks".
Another lady, who was walking towards the same store as me, looked at me and said (in a surprised tone) "She said she wants to buy your hair". I replied, "That's ok, it's not for sale." She then asked me, "Why have you grown it so long?" I told her, "Because that's the way I like it."
Frodo
I was approached once by a man wanting me to donate my hair to children. I was nice at first, but he continued to annoy me. He told me he was a barber and would cut it for free. I basically told him that barbers suck at cutting hair, and that I would donate some hair located else where on my body. He saw that I was angry and quickly ran away! It was funny!