For instance, I did a 21/4 with Vayne today, because the enemy played to aggressively on my lane.
I finished a match with Lee Sin 8/1 today because they played to aggressive. And they also surrendered at minute 20.
But the quadra/pentakill is a lie. I only witnessed a pentakill twice in all the games I have played. Caitlyn did the first one. The second one was HURR DURR SLURP DERP HURR Karthus