T-Rex: If I changed my name to "Well and Good", then if I was killed and mangled in a horribly brutal death, the inspector on the scene could chuckle and nudge his friend and say "Hey. I suppose this is MOSTLY Well and Good?"

T-Rex: Hilarious!

T-Rex: Plus, if people saw me on the street they could say "Hey, it's all Well and Good!", except that they wouldn't actually say the "all", so it would just be "Hey, it's Well and Good", which doesn't really work.
T-Rex: ...Alright, I've decided. I'm not going to change my name if it ONLY works in the event of my horrific death, Dromiceiomimus.
Dromiceiomimus: okay

Utahraptor: Why can't you just be happy with the name you've got?
T-Rex: I am!

Utahraptor: It doesn't seem like it: you're always trying to change it to something with more of a punchline to it. But jokes get old! And if your name's a joke, you'll be the first one to get tired of it.
T-Rex: That's - that's a really good point, Utahraptor. Alright. No more joke names.

Narrator: LATER:
T-Rex: Everyone! If I was called T-Tex I could wear big Texas hats all the time!!
T-Rex: THIS IS NO JOKE