GG WP...
That's all I say at the end of every match now.
Bot lane goes 1/12 @ 10 minutes and are flaming each other, GG WP.
Jungler comes top and feeds Fiora a kill in a bad gank, GG WP.
I'm playing mid and Yasuo is handing me my ass, GG WP. (Not a blast @ Yasuo)
Etc., Etc., Etc.
No longer do I let trolls bug or bother me; if I find that it's getting really bad I just mute them.
If one of my team mates is bemoaning their bad play I try to encourage them not to quit and try to hand out some pointers that may help. If they choose to listen great; if not that's great too.
I also try to listen to any advice or constructive criticism my team mates send my way
I find that if I try to keep my attitude positive and try to encourage my team mates that even if we lose; our matches tend to be much more enjoyable.
I am trying to focus more on my play. Trying to look at the mini map more and see that jungler coming for me instead of blindly CS'ing and getting ganked and dying.
Long story short: be positive, be helpful and learn from your mistakes.
[slayer-pantheon-thumbs]