I play HoN. In case there is a player which is outright bad or makes poor decisions and then rages on me I just /ignore (a command to remove voice/text chat from a certain player) him. More often than not these types of players impedes my reasoning while playing and occasionally gets me in a bad mood.
Not directed at anyone in particular but merely a philisophy I have: You shouldn't play to win, you should play to get better. There are rare occasions when a loss is due to your team (it is a teamgame after all), but in most cases you should think about how you yourself could have played differently. Blaming others will not help you get better and often stand in the way of realizing your own shortcomings. Playing desperately to win will often get you in a bad mood, as they only way to 'feel happy' is to have a game which you win - or a game where you play very good.
Edit:
A video to get you in a better mood
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(This post was last modified: 01-26-2014, 12:45 AM by Acies.)