During my first year of medical student, we had this radiologist who lectured to us once a week. He kept talking about things being "2 sontimeters" long or whatever, and I had no idea what he was talking about. By the time I realized a sontimeter was the same as a centimeter, the semester was over.
On an informal survey of physicians, when asked how to pronounce the word "centimeter":
I still don't get it. Why do some doctors insist on pronouncing it "sontimeter"?
Note: Thanks to Dr. Grumpy for inspiration on the cartoon