The 77-year-old struck problems when he parked his tractor and trailer and trailer across the central reservation and fast lane of the dual carriageway.

The BBC News reports that: "Robert Simpson, 77, admitted driving carelessly while knowing he had defective eyesight.

"Two cars crashed at high speed while trying to avoid the trailer on the A9 near Dalreoch in Perthshire.

"Simpson had been driving in the dark, without any lights, at an average speed of about 10mph. Sentence was deferred."

"The pensioner, who is registered blind and lives in a nursing home at Auchterarder, got lost on his way home from a trip to Perth.

He thought he had missed his turn-off and pulled in to the central reservation, leaving the trailer parked across the outside lane of the busy trunk road."

While this might seem mildly amusing, it does also provide some food for thought. The average of the New Zealand farm owner is continually ageing and is probably not too far away from 77.

If you're a 65+ sheep farmer can you afford to hire someone to drive your tractor?

For more on the UK incident click here.