Ulysses S. Grant didn’t actually like the name Ulysses, but his middle name was even worse, and U.S. Grant seemed a little too patriotic to him.
In the heat of battle he often became confused whether he was fighting with the blues or the grays. Eventually his aide began loading his guns with powder only, no bullets, to avoid the friendly-fire casualties that were always embarrassing.
He is generally considered the inventor of “celebrity handlers” although he may more accurately considered the reason for their invention.