Sometimes, the apocalyptic mode can be a real downer. This is not one of those times.
Especially with those new zombies that can run reeeeeely fast, this might come in handy.
Even if you observe rule number 1; after a while you are gonna get tired and you might as well conserve your energy.
I was one of those weird kids. Okay, I suppose I still am. Because this seems like great fun to me…