'''Original air date:''' 10/7/1995

'''Stimpy’s Pet''': Stimpy takes in a stray circus midget.

'''Ren’s Brain''': Stimpy surgically removes Ren's brain, which takes on a life of its own.


!!"Stimpy’s Pet" contains examples of:
* NoCelebritiesWereHarmed: The midget speaks like Creator/JackNicholson.
* SpecialGuest: Creator/PhilHartman as the midget.

!!"Ren’s Brain" contains examples of:

* BrainTheft: Stimpy removes Ren's brain and replaces it with a telephone.
* EarthShatteringKaboom: The episode ends with the Earth exploding.
* EndOfAnEra: This is the last episode written by Creator/JohnKricfalusi, and the last episode where he voices Ren (via archival recording).
* FreakOut: Ren’s Brain has one when he gets home and finds Stimpy hanging out with his brainless body, mistaking it for another chihuahua.
* GainaxEnding: Stimpy is fighting to sedate Ren's disembodied brain. [[BreakingTheFourthWall The audience watching the episode]] is so freaked out that [[YourHeadAsplode their brains explode]], and it sets off [[EverythingExplodesEnding a chain reaction of head explosions]] that [[EarthShatteringKaboom destroys the Earth]]. Afterwards, a narrator ominously intones "And thus endeth the Republican party as we know it", while Ren's brain drifts through space with a shout of ''"[[CharacterCatchphrase You eediot!]]"''
* ObliviousTransformation: Ren's brain gets up and goes to work as if nothing has happened.