This SriLankan fellow, a recent immigrant to US, is looking to buy a saw to cut down some
trees in his back yard. He goes to a chainsaw shop and asks about various chainsaws. The
dealer tells him, "Look, I have a lot of models, but why don't you save yourself a lot of time
and aggrevation and get the top-of-the-line model. This chainsaw will cut a hundred cords
of wood for you in one day."

So the man takes the chainsaw home and begins working on the trees. After cutting for
several hours and only cutting two cords, he decides to quit. He thinks there is something
wrong with the chainsaw.

"How can I cut for hours and only cut two cords?", the man asks himself. "I will begin first
thing in the morning and cut all day", the man tells himself.

So, the next morning the man gets up at 4 in the morning and cuts, and cuts, and cuts till
nightfall, and he only manages to cut five cords.

The man is convinced this is a bad saw. "The dealer told me it would cut one hundred
cords of wood in a day, no problem. I will take this saw back to the dealer", the man says
to himself.

The very next day the man brings the saw back to the dealer and explains the problem.
The dealer, baffled by the man's claim, removes the chainsaw from the case. The dealer
says, "Huh, it looks fine." Then the dealer starts the chainsaw, to which the man responds,

"What's that noise?"