Nothing puts me on tilt more than this...

A 4 votes to 1 surrender, where the rest of the team is "convinced that we can't win" when the enemies haven't even gotten to the inhibitor turrets yet and we're only behind by maybe 10 kills. Smart decision making and good team fights can easily turn that around.

Seriously, the only reason why a loss seems imminent in that situation is because the team just gives up and has the "we lost gg" attitude when we have a seriously good chance of still being able to win, not because we may be behind.