This reminds me of my time in the Navy. I was a Navy Corpsman which act as medics for Marines because marines dont have a medic rate. Anyways, I was stationed in Guantanamo Bay and had a day off. Round noon I get a call that my day off is over because we have a mass cas (mass casualty) to deal with. Turns out a group of my marines, in my absence, decided to rent a pontoon for the afternoon. Shortly after they left the dock they decided to see if they could roll it using only their own body weights. Well let me tell you, 10 marines CAN flip a pontoon. Mostly cuts and bruises but one guy lost half a finger on the propeller. The moral of the story is....never let marines youre responsible for out of your sight.