McCartney says he thought abusing frogs would help prepare him for being conscripted into the British Army when he became 18.

He told fans during a chat on "When I was a kid and I remember thinking as I would have to go into the Army, cruelty to frogs seemed justified as a practice for the Army.

"I love them now and I apologise to the children of the ones I abused as a kid. Secret revelations of a frog molester."