A sailor dressed in his dress whites was in an airport waiting for a flight when a little boy came running up. "Mister, wow! Can I wear your hat?" So the sailor lets the little boy run around, wearing his white sailor hat.
Just then, the little boy sees an Army Ranger in dress greens walk in the terminal. Still wearing the sailor's hat, the boy runs up to the Ranger. "Mister, can I wear your beret?"
The Ranger looks down at him and growls, "Suck my dick!" and turns to walk off.
"Oh, no, sir," says the little boy, "I'm not a sailor! I'm just wearing his hat!"