How to be a good Salesman

A new vacuum cleaner salesman knocked on the door on the first house of thestreet.
A tall lady answered the door.
Before she could speak, the enthusiastic salesman barged into the livingroom and opened a big black plastic bag and poured all the cow droppings onto the carpet.
"Madam, if I could not clean this up with the use of this new powerfulvacuum cleaner, I will EAT all this!" exclaimed the eager salesman.
"Do you need chilli sauce or ketchup with that" asked the lady. The bewildered salesman asked, "Why, madam?" "There's no electricity in the house..." said the lady.
MORAL: Gather all resources before working on any project and committing to the client...!!!