Who said "My only job is being grouchy, and I'm overqualified."?

This quote is attributed to Oscar the Grouch.

My only job is being grouchy, and I'm overqualified. - Oscar the Grouch

"My only job is being grouchy, and I'm overqualified."

Oscar the Grouch Work

"I love trash. Why do you think I live in a can?"

"Scram! Can't you see I'm trying to be miserable here?"

"The more it stinks, the more I like it."

"Why is everyone always trying to make me happy? It's exhausting."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."