Earlier surrender: Decrease surrender timer by amount of kills

I just played a game on Twisted Treeline. It went bad, it went horrible, we were completely destroyed. Which is fine, they won fair and square.

What is not fine, is that we are 2 turrets down and 8 kills behind (and of course lots and lots of CS). Before the 8 minute mark, it was already decided. Please let us forfeit, there is no fun at all to play another 7 minutes in which you die over and over and over. Their Fiora could easily 1 v 3 us (and most of the time her team backed her up anyway).

So I propose for games that went down south way to fast: For every kill/turret that the other team is ahead, reduce the timer by 30 seconds. In my case we would be capable of surrendering at 10 minutes, which is long enough for such a slaughter.