I was really disappointed with this episode. First the bully was apologetic and friendly to Leonard, but when he sobered up, he went back to being a total jerk, (putting it mildly.) Then it ends with the bully chasing Leonard and Sheldon. I probably would have enjoyed this episode a lot more if either Leonard or Sheldon popped the guy in the nose, or pulled a George Mc Fly and punched him out.
At least in the episode "The Zarnecki Incursion," When the guys attempted to confront the guy who hacked into Sheldon's World of Warcraft account, and they failed, Penny arrived, told the guy that "a girl was going to touch him in his special place." then preceded to kick him in the tots. THAT was a satisfactory ending!
I will be more forgiving about this episode if the bully returns, and Leonard finally takes a stand...and wins!