5 trolls in a row?

Ok,how is this even possible, i played 5 ranked matches and all of them i had a troll on my team,like wtf. i just want to get to gold again but i can't do it if i keep getting people like this in my match, the first one my support would continually feed my 0-4 enemy talon, second one our lulu was pretending that she was lagging and just fed,like typing"omg i can't move/don't kill me" and she would run into turrets.3.this one is actually pretty stupid,i had a adc vayne that said: "my mouse is broken". 4th,same shit running down lanes feeding, 5th. a fid support(which i do not mind) stayed bot lane whole game the enemy grouped as 5 and we were pinging him and he said this,"omg i'm so drunk,i think i drank to much". like come on :(. has anyone expiernced this like i have? i was 81 lp btw now i'm at 0.