The man takes the chainsaw home and begins working on the trees but after working for hours he only cuts down two trees.
“How can I cut for hours and hours and only finish two trees?” he asks himself.
Next day the man brings the chainsaw back to the store and says it doesn’t work properly.
“Hmm, it looks okay,” says the server, and starts the chainsaw.
The man jumps back in shock and cries, “What’s that noise?”