Listen, I understand the farming shed gives good cash. But, one of the best parts about grinding for something is the reward at the end: gratitude and the reward you get. If you rely on cheap tactics, no gratitude is rewarded. You just feel good about yourself temporarily. Plus, how bad does it feel to get farmed off of? It is pure agony, and it may give some exp to you through zombie level up, but it is still agonizing. My point is: Please, don't farm off the shed. It isn't fun at all, and it you are ruining any hope that the round can end so that people can ACTUALLY PLAY.
Signed,
-someone who has experienced this firsthand, and wishes what is best for the game's players.