Hmmm... All this talk of Pit Bulls vs. Golden Retrievers, dogs vs. guns, and how dogs primarily inflict damage. Well, I'm here to tell you - bite force has nothing to do with it. If you have never been unfortunate enough to have to deal with an armed dog, you have no idea the damage they are capable of inflicting. I speak from experience.
Here's Ed - armed to the teeth (literally). Don't let his pleasant, unassuming demeanor fool you - he is a holy terror when armed with this thing. The damage he can inflict, the havoc he can wreak with this thing must be experienced to be fully appreciated.
This is his "zoo toy" - "a favorite of zookeepers around the world as a plaything for lions, bears, gorillas, and other such animals that would destroy lesser toys...". Empty, it weighs about five pounds. Full of water, closer to twenty. Just keep your distance and no one gets hurt...
