Clint Eastwood
Clint Eastwood, what did he do during his military service? Navy SEALS? Paratroopers? Marine Corps? It seems like all of these would have been suitable for Eastwood, but he was in fact… a lifeguard! He does have a story that goes down in the history books, though. He and a pilot, after crash-landing into the sea, swam over 2 miles to get to safety.
Johnny Carson
It takes a certain personality to be able to get people to speak about sensitive topics. Johnny Carson successfully did it for many years on the The Tonight Show, but perhaps he got these skills from his military career. During World War II, Carson sat on board the USS Pennsylvania and decoded encrypted enemy messages.