A visitor to a certain airfield noticed that all the men had names displayed
on the back of their ove-ralls: 'Spike', 'Hank', 'Killer', 'Al', and so on.
The visitor asked the man what the idea was.
"Oh, them names don't mean a thing, bud," was the reply. "We
had'em all painted special so they could tell us in a glance, but what happens?
The top kick comes around and calls everyone 'Joe'."