The major components of the flatus, which are odorless, by percentage are:I stand blissfully corrected.
* Nitrogen - 20% - 90%
* Hydrogen - 0% - 50%
* Carbon Dioxide - 10% - 30%
* Oxygen - 0% - 10%
* Methane - 0% - 10%
Mr. Methane is a professional flatulist. There used to be others, but now he's the only one.
In this interview he explains and demonstrates how he does it. He expands his abdominal muscles to fill her bowels with air, which he then lets out in a controlled manner. I highly recommend Mr. Methane performing Stevie Wonder's I just called to say I love you.