I know some. Maybe not what you are looking for, but anyway...
"How did you do that?"
- Very good.
"Can you do that again?"
- Magic is like a joke, it only works once.
"Can you make my wife (or something else) disappear?"
- I do magic, not miracles.
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In The Real Secrets of Magic vol. 1 by David Stone, it's a trick were he produce a bottle of wine.
I have a question about that trick, but I hope I don't expose too much here:
The gimmick thing you have in your belt; where can you get a thing like that? The problem is that I don't even know...