The Gold bank

– Gold bank is a very strange bank.
— What do you mean?
— Oh, you know. You must have seen the flat screen ads? Freedom to own. Buy now. We lend you for the future, they say.
– Yes, off course i've seen the ads, Albertina said.
– Ok. You borrow money from the bank to buy a house or a car. You pay off the loan each month.
– Nothing strange about that, is there?
– Perhaps not in theory. The problem is that the dept increases the more you pay.
– What? Not the other way around?