Rigged matchmaking
So, it first puts you against 2 premade smurfs while all you get is a duo mid-jg who feed their a**es off and spam /ff polls. You lose and then it does it AGAIN and AGAIN and AGAIN, 2, 3 TIMES IN A ROW until you are so tilted that you are on the brink of uninstalling the entire game, but pause for a moment to ponder and you think to yourself 'Maybe it was just a coincidence after all'. In the end, you decide to give this game one more chance only to be stuck in this vicious cycle of never-ending agony.
I've grown so accustomed to this feeling at this point that it doesn't annoy me anymore. I actually find it quite funny and amusing.
But I guess that's my way of coping with things..