Cartographer 1: Leigh, did you know Bert lost his job as a cartographer?
Cartographer 2: No! What happened?
Cartographer 1: He was let go because he had no sense of Yuma!!
(Fellow map enthusiasts: I know the above is reaching and will produce groans, but we have to start somewhere!)
The following is shamelessly ripped off from researchguides.Dartmouth.edu: