The other thing to be carefull of, is to not add fuel to a "puppy mill" kind of argument.
Maybe he thinks the only people who could make a living off of breeding reptiles are those who have thousands of snakes cramped into their basements like an Asian food market.
But most people don't have a clue that people actually breed reptiles as a hobby, much less as a source of income.
At our reptile shows, most people (more than 70%), assume that we have travelled to far away places to catch all of these snakes. They are shocked to learn that 98% of our collection is captive bred animals, and that most of them were hatched right here in Canada.
I then usually go into the speil about there being 2700 species of snakes alone, but not enough zoos in the world....