It amazes me how little some of these sales assistants know about the products they sell.

Some of the worst are in car dealerships. The wife put an order in for a new car and I said at least you will be warmer in the winter with them heated seats. The car salesman pipes up and says 'I don't want to disappoint but this model doesn't come with em'

I told him that this model has had em for the last 12 months, he went and checked and came back saying 'well you learn something everyday'
They know how to take money off you though!