My question..

Two Grandmasters did a very stupid thing one time when they were
losing in a tournament game.

One loked at his opponent..grabbed his king and threw it across the
room.

The other actually stood up onto the chess table...kicking the pieces
over and screamed "Why must I lose to this idiot??"

Dave

I will give hints if needed

let me try two answers:

1) they were not playing each other - two parallel events. Plenty of
idiots around in GM circles.

2) The first one grabbed his opponent's king?

gil.

They are two different events...the first was a world champion...the
second was a man that the first would never give a shot at the title.

Dave

Oh...no..he grabbed his own king and resigned that way...when he
threw it across the room

The first sound likes Alekhine but I do not recall the incident.
The second was Nimzo upon losing a game and tourny to Saemisch.
-ww-

Correct!!!

Dave