Originally Posted by Katahdin
to OP... No.
Sorry as elegant and thorough as you may sound it's not always true. I once had a noob in one of my games and I tried to work with him, you know do this, dont do that. However, no matter how many times we told him not to run in 1v3 because Endless Rage would not save you, he never listened and ran straight in and eventually fed the other team's carry into a defeat even though I had a solid game of like 10/3/14. Some noobs don't deserve to play regular games, they should stick to practices until they learn the mechanics of their champion and don't feed. If they don't, and they cause losses for counted games, they should be yelled at and should be told to leave.
No. Basic psychology -- Yelling at someone makes them less likely to listen to you unless you have actual authority over them. It doesn't matter what you're saying, once it becomes angry all the player can hear is "RAGE RAGE RAGE RAGE WE DON'T LIKE YOU." If being nice doesn't work, being angry doesn't either. Just ignore him.
To quote condon, "All that *****ing about it is going to do is waste you valuable 'not sucking' time."
If he's bad, then the best you can do is give him tips and play nice, and if it doesn't work, get over it and take the loss. It's a casual game, not the Olympics. You don't lose your house because you don't have a wonderful WLR.
Anyways, off of that. Personally, I believe that you should never rage at your teammates, it makes YOU look like a noob and everyone thinks you're a d-bag.
However, taunting the enemy team is a great tactic, especially when playing mindgame characters like Shaco and Evelynn. Yelling in all chat, "BOOTY FOR ALL!" After getting a triple kill with Gangplank with 3 choice shots of Parrrley will make them focus you. If they are busy focusing on you, and you take care to stay out of range and not die, the rest of your team can crush them easily.
Just always remember to apologize for any d-baggery incurred when the nexus is destroyed or in the post-game chat.