But Youngman soon got cold feet and decided to inform the police about his passenger's "strange proposals". Shortly afterwards, the police escorted the marquis from the Scilly Isles, taking him to St Lawrence's Hospital, Bodmin, from which he was later released.
The following day, from his home in Ireland, Headfort denied Youngman's account of the incident, though he admitted to hiring his boat. But his neighbours in nearby Kells described how Headfort, wearing a Stetson, had fired three blanks into the ceiling of a local pub during a party. "No one took much notice because he is known for his practical jokes," one said. "The marquis is regarded as a crack shot."
While some of his behaviour could be attributed to high spirits, Headfort also suffered from manic depression that necessitated occasional hospitalisation. Related to this was a period of alcoholism. His last speech in the House of Lords in 1987 was a tribute to the work of Alcoholics Anonymous. He did not drink alcohol for the last 20 years of his life."