Emotional Intelligence Question:

Instead of asking that outright, you might tell a quick anecdote about a family member or colleague who annoys you. Then ask if there's anyone at the candidate's last job who really bothered them and how they dealt with that.

Of course, a savvy candidate will focus on solutions-like how they've smoothed that relationship over-but it can still give you valuable insight into how they perceive other people. You'll probably also learn something about how well they understand the effect of their behavior on others (and its limits).