The area when sprinklers don't reach the area where the sprinkler manages to be avoided and thus makes it a sprinkler-bias. This area gets sad because the sprinkler was biased towards it.
Grass Patch 1- Dude I got showered with water today by Geoff the sprinkler, wbu?
Grass Patch 2- Nah Geoff is a meanie, totally sprinkler-bias towards me.