Your 1st mistake was, you devised an awesome plan of revenge.
Your 2nd mistake was letting him slap you.
Your 3rd mistake was letting him rob you.
Your 4th mistake was letting him call you a punk ass nigga.

However, I am glad he accidently broke his zong, and cut him self with the glass very badly when he stepped on it through his sock, and that he tripped walking down the stairs and got a concussion. and his parents found out and now they are trying to check him into rehabilitation.

Next time just bust a bottle on his face and show this 21 year old that a 15 year old can step up to the plate. JMO