A man was handing down the family business to his son.
 "Now Jim," the father said, "just watch as I deal with this
 customer." 
 
 A man entered the shop and asked for a packet of grass seeds. The 
 father handed them to him and asked if he wanted a lawn mower, to
 which the man replied, "Why would I need one of those?"
 
 "Oh," the father said "these grass seeds grow really fast." 
 The man accepted the deal and left £80 worse off.
 
 The son of the shop keeper took over at the counter, when another
 customer walked in. "Could I possibly have a packet of Tampax
 please." he requested "Certainly Sir," the young boy said " and
 will you want a lawn mover with that?"
 
 The stunned man retorted, "Why?"
 
 "Well sir," the boy said, "it looks like you won't be doing
 anything else this weekend, you might as well cut the grass."