I will admit, I have a temper, I *****, ALOT. But I usually only quit when victory is so improbable that enduring more noobage isn't worth it.
MW2 and Gears are my best examples of this.
Whoever called it a reflext test is right on, I find no amount of sneaking, or aiming skill beats that one ************ running around with a p90 or dual G18s, just snapping off as soon as you look around the corner. I miss the tactical, when there were few enough people that you could BE undetected, and the pray and spray option wasnt the ONLY option.
Even the FAL is used to rapidtap, I miss my G3. Anyway, I run okay scores but seeing some punk sniper get a nuke when my team had 245 on HQ is just damn infuriating. Then there are Rust matches, no words needed there. Lastly, I don't snipe, so snipe matches aren't great, especially Afghan, but when my team decides SHOTGUNS are the best way to deal with those FUCKING SONOFABITCHING Interventions, I am not gonna stick around for the rape, I'll find a match where I can do something.
Gears, Shotguns, ALWAYS, nuff said.
I sometimes drop singleplayer games, but its not usually rage, its more like "game has ceased to be fun now, recreational value = nil, changing activities" I don't play to win, I playt to enjoy myself, experience a story or something, not to beat my head against a wall till it breaks.
Now in other multiplayer, Cod4, Halo3, etc, I usually never quit unless my team is so stupid I am barely able to spawn, at this point I see no honor or value in continuing.
Co-Op is fastest for quits, if I start Vs in L4d(1 or 2) I had better hear fucking VOICES and I'd better see coordinated action, not 4 idiots trying to get their own achievements.
I will leave the second I join if not, I am not here to carry those bitches to victory. Especially since games take nigh to an hour, I am not running a charity, I have my own achievements(sometimes, and never at expense of victory), and I get frustrated fast.
Finally, I pwn griefers if possible, but leave otherwise, again, I'm here to have fun, if thats not possible I will seek entertainment elsewhere.