Who said "I laugh at your pain, man. I laugh at it."?

This quote is attributed to Nelson Muntz.

I laugh at your pain, man. I laugh at it. - Nelson Muntz

"I laugh at your pain, man. I laugh at it."

Nelson Muntz Humor

"Ha-ha!"

"Your tears of unfathomable sadness!"

"I'm gonna enjoy this, Bart. I'm gonna enjoy this a lot."

"Eat my shorts, Simpson!"

"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."