Today Dan said, "My name was Gooloo (Gulu?) before I was born, then you called me a different name. I was Gooloo because I like painting and gluing."
Derek called him Gooloo a couple of times and Dan answered as if that were normal, but an hour later he couldn't remember what his "real" name was and so he's back to being Dan. I think, one day, he'll be glad we didn't really name him Gooloo.