Here's the Suggested Answers fRom the interview Experts
Answer to Question 6:
Ah, the interviewer's concerned about any problems that might pop up on your next job—especially since that might be with him. Be sure to use good judgment here. Don't bad-mouth your current boss and don't bring up anything negative. A safe approach is to say something like: "It's time to move on in my career" or "I'm looking for a greater challenge.