Bullies usually try to put on a tough-guy act, but it doesn’t take someone very tough to pick on a blind kid. And presumably, that’s why another kid stepped in to knock the loser out.
Seriously, how bad-ass can you be if the person you’re trying to beat up can’t even see? This bully, like all other bullies before him, is secretly a wimp deep down, as evidenced by the fact that he was taken out so easily with one punch.