"My_Boss_Is_A_J-E-R-K!" by Nyttend/Public Domain

The Mensch, the Goofball, the Jerk, and the Asshole

Humor skill is important, but perhaps even more important are the underlying reasons why people use humor.
“Chimpanzee_selfie” by Frontierofficial/CC by 2.0

The Evolution of Humor: From Grunts to Poop Jokes

The human capacity for humor distinguishes our species from others. Humor is the result of millions of years of evolution.