Marine
A Marine, A Navy SEAL, and a Delta Force member are sitting around a fire....
The marine says, "I once killed 50 enemy combatants with a single belt of my M249." The Navy SEAL says, "I wiped out an entire enemy compound with my K-Bar." The two look at the Delta Force and expect him to pipe up, but he just stares at the fire, stirring the coals with his penis.