got a leaverbuster because client crashed

I find this situation to be complete and utter nonsense, why do i get a leaverbuster for something i can't control or disarm, this is just stupidity when you just want to play a game but cant because of this issue. Riot you have to control your client because it goes on a rampage. The biggest issue is that its completly random and gives off no warning during the loading phase. Someone is gonna have to fix this.