As Veterans Day approaches, it's worth it to remember that long before he was Higgy, he was an enlisted man in the Air Force taking care of strategic bombers.
In one of the Magnum PI episodes our hero had just returned from saving another damsel in distress and Higgins and his lady friend were re-enacting the Battle of Britain with loud RC planes right outside Magnums bedroom preventing him from getting any sleep. That episode ended with Magnum again trying to get some sleep and Higgins again working on his aerial combat skills; suddenly Magnum appears with a nice O/U shotgun and blasts Higgins' RC plane out of the sky! When Higgins' berated him for it Magnum simply responded: Flak! And headed to bed.