Sometime while drifting on the internet meanders you find stuff like this.
Then your life is pretty much complete.
https://upvoted.com/2015/10/14/can-you-propel-yourself-through-space-by-farting/
Witch allow me to hit two bird with one stone and link you this piece of Chris Hadfield quoted in this article.
—Run it while reading—
[youtube]KaOC9danxNo[/youtube]