"Sales" joke

A new sales assistant was hired at a large dept. store. On his first day, the
sales manager took him around to show him the ropes. They were passing by
the gardening section, when they heard a customer asking for grass seed.
The sales manager stepped in.
SM: Excuse me, but will you be needing a hose to water your lawn?
C: I guess so. I'll take one.
SM: And how about some fertilizer and weed-killer?
C: Um, okay.
SM: Here's a couple of bags. You'll also need a lawn mower to cut the grass
when it starts growing too long.
C: I'll take one of those too.
After the customer left, the sales manager turned to the assistant. "You see?"
he said, "that's the way to make a good sale. Always sell more than what
the customer originally came in for."
Impressed, the assistant headed off for the pharmaceutical section, where
he was to work. Soon, a man strolled in.
MAN: I'd like to buy a pack of Tampax, please.
SA: Sure, and would you like to buy a lawn mower too?
MAN: Why would I want to do that?
SA: Well, your weekend's shot to hell anyway, so you might as well mow the
lawn.