Tree felling

Casey had got a job felling trees. And he was paid by results. They gave him an electric saw and off into the forest he went. At sunset Casey returned with the other loggers and they counted their trees.

'I got ninety-eight,' said O'Brien.

'Ninety-one me,' added Quinn.

'I only got sixteen,' said Casey.

'Well, I can't understand that,' said the boss. 'Maybe your saw is defective. Pass it here.'

The boss pulled the starting rope and the saw burst into life.

'My God,' said Casey, 'what's that noise?'