Oh yeah, you could tame animals to make them your pets.
One Halloween I logged into UO, and my character had been transformed into a deer, as some kind of a sick joke! All my inventory was gone, and all I could do was deer stuff.
Then some bastard came along and TAMED ME. That totally sucked! I had to follow him around obediently all day. I guess I'm lucky he didn't skin me and make me into leather armor.
