Not really, because I have no idea the extent of ignorance I'm dealing with.
A simple question would be - how does the loan ever get paid off?
A simple point would be that not paying taxes on loans is not some crazy loophole that only the rich have access to. Literally anyone who has ever taken out a mortgage for a house or a loan for a car has taken advantage of this - I'd guess at least 80% of adults in America have a car or home loan.