The Lumberjack

There was once a lumberjack. He went to the woods each day with
his ax and choped down 15 trees. One day on his way to work he
passed a hardware store. In the window there was a wonderful
chain saw and next to it was a sign that said:


THIS CHAIN SAW WILL CUT DOWN 50 TREES A DAY!!!
OWN IT FOR ONLY $40!!


The lumberjack bought it and continued to work. Each day he only
cut down 15 trees a day with his chain saw, so he brought it to
the hardware store and told the clerk that he thought it was
broken.


"Well, sir, let's see..." The clerk turned it on and a roaring
noise came. "It seems to be working." But the lumberjack was
puzzled and he asked, "What's that noise?!?"