The only way to stay truly professional in this profession is to see the fun in life. We don't always open up fully with our clients, but we definitely to with other professionals. I suppose you may have preferred a duller response like NO!, but where is the fun in that. 

In my practice I put a BUNCHA NUMBERS on the ceiling over my head so the clients could see them. When I would as a question like "How much did you give the church last year?" I would inevitably see them look up for inspiration. I offered them inspiration. 

Now, if that ain't professional, I don't know what is!