- “Hmmmmmmm.......No sir, I don't like it.”
- ―Mr. Horse
Mr. Horse is a recurring character in the series.
He first appeared in "The Big Shot," testing out the difference between litter box A and litter box B - the Gritty Kitty formula. He first tests litter box A and replies "No sir, I don't like it" (which became his catch phrase). Among his more notable appearances include in "Fire Dogs" (he was one of Mrs. Buttloaves' pets and was thrown out of her ten story apartment and broke his legs), "Rubber Nipple Salesmen" (he appears as one of their customers here he was portrayed as a very paranoid person dressed entirely in rubber nipples who had apparently "made a mistake" fearing the duo were the FBI), he was a judge in "Dog Show", and he also appeared in the Ren and Stimpy "Adult Party Cartoon" (a.k.a. "Ren & Stimpy's All New Adult Party Cartoon").