Robin Williams says undergoing heart surgery was "humbling".

The 60-year-old actor had the aortic valve of a cow fitted by surgeons three years ago to correct a problem and says his brush with death has made him live life to the full.

He said: "I've been given a second chance and I intend to make the most of it."

Despite the seriousness of the procedure, the 'Happy Feet 2' star is also able to joke about his ordeal.

He said: "I can go to the toilet standing up now, which is nice, but I can't eat meat because I've become one of them so it would be cannibalism."

While he is embracing life, Robin insists he would never take part in a reality show like 'I'm a celebrity... Get Me Out Of Here!' or 'Dancing With The Stars'.

He added in an interview with the Daily Telegraph newspaper: "I would never appear on it. Never. I don't do well with snakes and I can't dance.

"I am such a bad dancer, in fact, that I could only ever appear on a telethon, raising money for damaged people, 'The phone lines are now open. Pledge us money and we will make him stop.' "