John Cleese took LSD at 65 to see "what it was all about".
The 85-year-old comedy legend was "surprisingly ignorant" and was never "interested" in drugs when he was younger, but in 2005, he decided to try the potent hallucinogen - which "can alter a person's perception of reality and vividly distort the senses" - under supervision, and was left in amazement by how "fertile the human mind is".
