Know The Rules !

At a recent event I played I witnessed the following spectacle : 2 A class players were battling it out when one of them picked up his Q , reached across the board and touched his opponents bishop , then noticed the bishop was protected , said " oops , can't do that " and tried to put his Q back and make some other move . Ofcourse he was informed that the rules require him now to capture the B (if its a legal move ) with his Q , he has no other choice ! In a rage he stormed out of the room and slammed the door so hard he broke the door ! He went looking for a rule book and/or the TD to confirm the rule . The player in question is a senior and has been playing tournament chess for decades .  There is NO excuse for him not knowing the rules of tournament chess imo . 

He knew the rules.  He was just hoping to put something over.  At least, that's how I reckon it.

Rules are rules. Maybe he needs to be banned for a couple of tournaments to give him time to re-read the rules.

A puzzle where we are trying hard to lose?!

I seem to have gotten lost here. Weren't we talking about players not knowing the rules? How did we get off onto puzzles?

Seems like he's what we used to call a "poor sport".

There is also no excuse for him throwing a temper tantrum. He is an adult playing a board game.