But does he mean it? He turns his Victor Meldrew catchphrase "I don't believe it!" on its head in his four-part "celebrity radiography" Believe It!, in which he laces alleged reminiscences with unlikely tales and a certain surreal logic.

Playing himself - with some assistance from his "ghost writer" Jon Canter and actors including David Tennant and John Sessions - Wilson claims that he never drank because a traumatic childhood experience suggested that alcohol was indelibly associated with truth and death. "What could be more scary?"

These picaresque memoirs also reveal how Wilson caused George Best to miss a penalty, and why a car journey with Sir Laurence Olivier ensured that his confirmed tipple would be elderflower cordial ... Or so he says.