A young man got a new job running the register at a store. The old store owner said he would teach him how to up-sell."Watch how I do it," he said to the new hire.As a customer put a bag of grass seed on the counter, the old-timer said to him, "When you plant those seeds and the grass starts growing, you're going to need a new lawnmower to cut the grass.""You know," said the man, "I do need a new mower. Sure, I'll take one."After the customer left, the new kid said, "I think I see what you mean. Let me handle this next one."A customer stepped up to the counter and set down a box of tampons. The young salesman said, "You know, you should get you a new lawnmower to go with that."The man asked the young salesman, "What are you talking about?""It looks like your weekend's shot so you might as well cut the grass."