What will you be asking during interviews?

Most candidates will go through the process leaving a favorable or neutral impression, but occasionally candidates come up with questions which are perceived very negatively by the residency program.  They are negative because they are judgemental or delve into privacy issues.  Other questions which leave a negative impression are those which leave the residency preceptors with an impression that the candidate doesn't want to work hard or that the candidate is "high maintenance."  Here are some examples of questions which are best left out of your interview.

1. What problem areas were identified during the last ASHP accreditation visit?  It's fine to ask about what the program is hoping to improve upon; it is not okay to try to identify "dings" from accrediting bodies.
2. Why was so-and-so ex-resident let go from this residency program? Personnel issues are private as all pharmacy residents are considered employees.  There is really not a good way to ask about this topic. 
3. Why did so-and-so ex-resident quit this residency program? See #2 above.
4. Why did this program have an unmatched position last year (or the year before, etc.)? Because the matching process starts with the candidate and not the program, there are many reasons the program may have an unmatched position which may have nothing to do with the program's quality.  Sometimes the highly competitive programs are all going after a common pool of candidates, for example. Use other questions to try to assess the quality of the program but keep in mind that you should also be thinking about "fit."
5. What time would I be allowed to leave for the day as a pharmacy resident? This question implies that there is something in this resident's life which is a greater priority than the residency.  Candidates indeed have practicality concerns when it comes to childcare and similar responsibilities, but consider instead asking the current residents about the hours of their "typical day."
6. How did I do on the interview? Even if you have done well, this will leave a negative impression because it makes it seem like you are needy for constant feedback.  Asking this question is not worth the risk because you can't change how you did and even if they think you are a good fit, another candidate may outrank you.
7. Where will you rank me or how many candidates will you be ranking? This relates to the question above.  The "how many candidates" question is a problem because there may be candidates who will not be ranked and answering the question may reveal which candidates fall into that category.
8. How many candidates were interviewed? The temptation to try to calculate where you will end up in the match is very high in this process. It is far more valuable to focus your efforts on asking detailed questions about the residency as that will help sell your committment to finding the best residency for you vs. revealing your anxiety about "getting something" in the end.