In referance to the poll, if I'm injured, even in real life, I carry medical supplies in my hiking / ready packs. It wouldn't make sense if a zombie bites me, I eat a browny and all of a sudden I'm up and around. A brick could make sense, but that's very limiting and that would be like going to the hospital if all you have is a scratch. Medical supplies, hands down, makes the most sense to me, especially if it's regenerating / ammo-like / re-supplyable / multi-use (not all at the same time mind you).