He didnt knock him out..hes laughing.
Im pretty sure the guy is pissed, they werent particularly strong punches.
And drunks are pretty easy to knock down anyway.
Still Sadlad is right, these east european bums are becoming a problem, they are alot tougher than our usual lot.
You obviously stopped watching the video after the first knockdown because he is SLEEPING after the bum punches him the 2nd time.