The shit digimon.
Sukamon. Numemon. Garbagemon. Raremon. Etc …
I have nothing against the characters themselves as they are portrayed in the series, but there’s something about living, breathing heaps of feces that sets off the “Uhh …” meter for me.
Not to mention if you are unfortunate enough to get one of these on the virtual pets it pretty much taunts you with being a “bad tamer”.