Overheard in IFR Magazine's "On the Air"

We were just being handed off after leaving Ft. Lauderdale (FXE) to N. Eleuthra (MYEH).

Me:
Miami Center, Chieftan 867CJ leaving 2,000 for 7,500.

Miami (approach):
Chieftan 7CJ, you can fly direct if you stop calling me "center."

Me:
Roger that ... approach.