I guess I'm a pretty fearless dude. I'd just take his gun away from him and pummel him. It's all good.
you got it all wrong dickhead.
you sit and wait for him after work, or at night outside of his apartment.
put on the head gear, smash a kneecap with a baseball bat, or beat the shit out of him.
get away quietly. dont say a word.
he wakes up, doesnt know who hit him...but damn sure he knows what for.
and if he doesnt, he'll work it out when it happens again.
this way u dont get no heat, no retribution, and no one puts two and two together cos its anonymous.
the only reason you made yourself known was because you are too egotistical to realise what danger u just put yourself in...