The interviewer and I had a very lively and long discussion about sports, especially tennis which is my favorite sport and also the favorite of the interviewer's son. I was thinking: "Yes, I'm so in. He's associating with his son".
Then we moved on to discussing the various hospitals in various locations that I can go for my clinical years. He asked me if I had any questions about these hospitals. I jokingly asked: "So which area would be most tennis-friendly?" He just sat there with a surprise look and said: "I'd imagine you asking about the hospitals and their programs, not tennis. You're going to medical school."
Uh...I...uh...ARGH. Now he's probably associating me with his irresponsible son who would only play tennis and not do anything with his life.
Result: waitlisted until I learn that school is more important than tennis. 🙁
There's a time to joke and a time to be serious. I wouldn't have made such a joke in the same situation.