Metaldehyde pellets, which you will find in the garden centre, are the most common method, but are looked at askance nowadays.

The most common method of approach was by telephone (52 per cent) though 37 per cent received a letter and 36 per cent an email.

The first surprise was the lack of roadblocks - a common method of preventing people attending rallies.

However, advancements in digital compositing and the increasing use of digital cameras have made digital the most common method of choice.

The second and more common method uses potatoes or sweet potatoes as the starch source, and added acid, such as hydrochloric, sulfuric or nitric acids.