If that's the case, then they won.
The guard is not paid to start fights, period.
By the way, like I said, we don't know what happened earlier. Maybe this guy was being a dick all along, and the kid decided to roll film?:shrug:
After watching it a second time, the "guard" is clearly invading the kid's personal space each time he goes up to him. (You don't stand 3 inches from someone you are having a confrontation with.)
The "guard" threatens the kid with physical harm. "I'll break your arm".
The "guard" is the one doing the goading with his calls of, "You're a bad kid."
:shrug: