Who said "Be nice to people or they'll like, be mean to you."?

This quote is attributed to Beavis.

Be nice to people or they'll like, be mean to you. - Beavis

"Be nice to people or they'll like, be mean to you."

Beavis Kindness

"Heh heh, like, this sucks"

"Heh heh, that was cool"

"Like, we're like, the coolest guys ever"

"Heh heh, fire, fire!"

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."