The Closet of Stupid Monsters

Yes,  I have what I refer to as the Closet of Stupid Monsters.  These are monsters  listed in the MM/DMG and other sources like the MM2, Monsters of Myth, and elsewhere.

I will list the monsters I have tossed into the closet, noting what source they came from.  Some people may disagree that a particular monster belongs in the Closet of Stupid Monsters, but if you're going to try to convince me otherwise, it's not likely to happen.  Better to agree to disagree.

You will likely observe that just about any monster with psionic abilities is included in the Closet of Stupid Monsters because, well, psionics are stupid.

I will add more to the list from other books as I have access to them as I go along.

The Closet of Stupid Monsters

Beholder/MM1:  Floating gumball with magic eyes.

Boggle/MM2:  Slimy gollum-esque thing.

Bowler/MM:  A rock that rolls.

Catoblepas/MM1:  Just look at the description and picture, it screams
"STUPID!!"

Cloaker/MM2:  An evil article of evening-ware.    whatever.

Drelb/MM2:  Wanna-be wraith with psionics. 

Eye of the Deep/MM1:   Underwater beholder, still a floating gumball.

Executioner's Hood/MM2:  Smaller version of a cloaker.

Froghemoth/MM2:  You really need someone to tell you why this thing is stupid?

Gibbering Mouther/MM2: 
 
Gripli/MM2

Hollyphant/MM2

Intellect Devourer/MM1

Lurker Above/MM1

MagMan/MM2

Mandragora/MM2

Mind Flayer/MM1

Miner/MM2

Modron/MM2

Morkoth/MM1

Mycpnid/MM2

Obliviax/MM2

Phycomid/MM2

Psuedo-Undead/MM2

Retch Plant/MM2

Roper/MM1

Slithering Tracker/MM1

Spectator/MM2

Stirge/MM1

Giant Sundew/MM2

Thought Eater/MM1

Trapper/MM1

Ustilagor/MM2

Zygom/MM2

Monsters that are useful in a very few limited circumstances but are otherwise stupid get put into the Box Outside of the Stupid Monster Closet.  

Box Outside of the Closet of Stupid Monsters

Piercer/MM1

Wind Walker/MM
Giant Bee/MM2