Meet the Mops

I was exploring a large cave and happened upon a small secret cavern. The passageway's entrance was labeled "Janitor" and inside I found the strangest creatures. Although it dark, I could see that these creatures were tall and very skinny with long, wild and floppy hair atop their heads. These creatures appeared to have gathered inside the cavern to meditate; I decided not to disturb them, and crept away quietly. Later I saw one of the Silly Creatures take one of these beings, help it into a headstand and then assist it in dancing around the floor on its head. These creatures I learned are called "Mops" and, if you ask me, are quite odd.