As a public speaker and trainer you will likely have faced the difficult task of answering questions that may be either outside of the scope of the seminar/course you are instructing.
An effective way to deal with questions that may be outside of the area you are presenting is to do the following:
- Thank the participant for their question. Let them know that it is an excellent question.
- Acknowledge that the question is one that others may have as well, but in order to stay on topic ...
- Suggest that you get together at a break or after the session to discuss this question in more detail.
I would say something like this:
"Thanks Mark. That is an excellent question about communication. Unfortunately due to time and topic constraints for this session, I am not able to address that question - why don't we get together after the session and discuss it in more detail?"
I have had great success with this method - I wish you luck incorporating this method of dealing with off-topic or difficult question in your presentation.