Anger is not good in a fencer.
I once fenced a woman and someone on her team who had beaten me earlier in the day said \"don\'t worry, he\'s easy.\"
So when I got the first point she got mad and when she got mad she got sloppy and I ended up winning 10-6. In fact I got a bronze medal in that tournament so I don\'t know what he was talking about.
You can use vengeance well though.
I was once fencing foil and the dude kept doing a parry 1 (disarming parry) on me. Sure, it\'s good to shake up your opponent by knocking the sword out of his hand once, but he did it like 4 times in a row. All that does is stop the bout while I pick up my weapon and wastes everyone\'s time.
So, being an epee fencer, I deliberately jabbed his knuckles a few times. Sure it\'s off target, but he wasn\'t used to a sore hand and his game was crap after that.
(there should be an \"evil grin\" smiley)