Currently, I'm watching Himalaya, a BBC travel documentary with Michael Palin (of Monty Python fame) as host. It's remarkable, beautiful, and I highly recommend it.
There is one scene in which Palin obtains an audience with the Dalai Lama. The Dalai Lama can barely stop laughing the entire time. He says he knows Palin from watching the BBC, which he does frequently. Every time Palin asks a question, the Dalai Lama starts giggling again.
Before Palin's interview, The Dalai Lama held an audience with some pilgrims from Tibet, who all bowed their heads respectfully. The Dalai Lama would ask them a question like, "How was your journey?" And then he would giggle.
You have to wonder: what would Roman Catholicism be like today if Pope Ratzinger couldn't stop laughing? Better yet, just think how much better off all of us would be if the Ayatollah Komenei had gotten the giggles as a matter of habit.