Meet the greatest threat to our countryside: sheep

The section of the A83 that runs between Loch Long and Loch Fyne in western Scotland is known as the Rest and Be Thankful. It would be better described as the Get the Hell out of Here. For this, as far as I can tell, is the British trunk road most afflicted by landslips.

The soil on the brae above the road is highly unstable. There have been six major slips since 2007, which have shut the road for a total of 34 days. The cost of these closures is estimated at about £290,000 a year. It’s a minor miracle that no one has yet been killed. The Scottish government has spent millions on clearing the road and building culverts and barriers. It’s about to launch a new engineering project, at a cost of £10 million, which it hopes will reduce the frequency of these disasters.

Sensible, logical? Yes — until you hear this.