There's a Marine, an Airforce Commando, a Navy Seal and a Green Beret sitting around a campfire telling each-other how mean and tough they are. The Marine says - "I can swim 50 miles and bite the head off a live chicken. One Marine is worth 5 other men." The Airforce Commando says - "I can clear runways one-handed and kill a man with my bare hands. One Airforce Commando is worth 10 other men." The Navy Seal says - "Yeah? Well I can dive up to 90 feet without air, and I'm an expert in demolitions. One Navy Seal is worth 13 other men." The Green Beret just sat there all this time saying nothing, stirring the fire with his dick.