Idiot in Canada

An idiot heard that a fortune could be made by working as a lumberjack in Canada. So, off he goes. After some weeks, he arrives at a lumberjack-camp and asks the foreman for a job.
The foreman says, “Okay sonny, but you’ll have to do a test first. If you can chop down 100 trees tomorrow you’re hired.”
So, next day, the idiot gets his chainsaw and happily saws away all day. However, when trees are counted the idiot only has 98.
“Oh well,” says the foreman, “You’ll get another chance tomorrow.”
So, next day, same story, 99 trees.
“I don’t believe this,” says the foreman, “A big strong fella like yourself should be able to cut down 200 trees in a day. You know what? You get one more chance, and I’ll join you to show you the trick of it”.
So, next day, the idiot and the foreman go into the forest. Upon arrival at a nice open spot the foreman takes out the chainsaw and starts the engine to which the idiot says, “What the…? Where’s the noise coming from?”