In Left 4 Dead 2, a charger that appears out of nowhere and starts pummeling the crap out of you, and no one can save you because
a. you ran too far ahead
b. you fell too far behind
c. you were being a total douchebag anyway so everyone just stands by and laughs at you during said pummeling
Player 1: Hey I bet I can get to the saferoom before u fgts lolololololol
(loling is interrupted by a charger ramming into player 1)
Players 2, 3, and 4 in unison: KARMA CHARGER!