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

This quote is attributed to Oscar the Grouch.

Scram! Can't you see I'm trying to be miserable here? - Oscar the Grouch

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

Oscar the Grouch Solitude

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

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

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

"A good grouch appreciates the finer things in life... like crud."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."