I like elephants. A friend of mine was very excited therefore to tell me an elephant joke this morning. Problem is I don't get it, and she didn't hang around long enough to explain it to me. What is the language gag here? Here's the joke (I think):
A friend of mine gave me an elephant for my room the other day. "Wow", I said, "An elephant. Gee, thanks very much." "Oh, don't mention it".