Three

Me, making breakfast, cutting strawberries, getting coffee, pouring cereal:  "Moo, eat your eggs."

Moo:  "I already ate my eggs."

Me, distracted: "Oh, sorry, I meant Doodle."

Doodle:"I don't like eggs."

Me, passing out plates and coffee now: "Crap, I meant TTM.  TTM, eat your eggs."

Dan: "Just call her Three, it's easier."

A few minutes later....

Moo:  "Mom, Three has poop!"

I think it's gonna stick.