Who said "I've failed at everything except being entertaining."?

This quote is attributed to Barney Gumble.

I've failed at everything except being entertaining. - Barney Gumble

"I've failed at everything except being entertaining."

Barney Gumble Humor

"Woo-hoo!"

"To alcohol! The cause of, and solution to, all of life's problems."

"I'm gonna go back to the lab and study some... stuff."

"Barney's my name, drinking's my game."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."