I know you're trying to sell your hair care product. And I know you get paid based on how much you sell. I also know you're supposed to greet mall patrons and try to get them interested in your stuff.
Know what's not a good idea? Smacking potential customers upside the head with your brochures. I very politely told you, "Not today, thanks." Your response was to follow me, hit me in the back of the head, and tell me loudly that, "Your hair's kind of frizzy, so you definitely NEED THIS PRODUCT!" When I again told you I wasn't interested and started walking away, you hit me again with your brochure. Not cool, dude. Not cool at all.
I passed by you again on my way out, and saw you hit two other people with your damn brochure. That's when I decided to go to the customer service desk and complain. Because really, personal boundaries and all.