I found this to be one of the funniest scenes of My Little Pony: Friendship is Magic.
Rarity explains the difference between complaining and whining to Diamond Dogs. I added a  sitcom studio audience laugh track.

From My Little Pony: Friendship is Magic...Season 1, Episode 19: A Pony and Dog Show.

*NOTE: I have a big imagination, so even if you don't like the laugh track, please refrain from negative comments please*