Something Manly for Dan

Is it really possible to ignite farts?
The answer to that is yes! However, you should be aware that people get injured igniting flatus. Not only can the flame back up into your colon, but your clothing or other surroundings may catch on fire. A survey done by Fartcloud (the site, alas! is no more) indicates that about a quarter of the people who ignited their farts got burned doing it. Ignition of flatus is a hazardous practice. However, if you want to try it, and you don't have a friend to light your fart for you, you might find it easier to accomplish the job using the Fartlighter.
There have also been cases in which intestinal gases with a higher than normal oxygen content have exploded during surgery when electric cautery was used by the surgeon.

http://www.heptune.com/farts.html