Personal Chemical Warfare Primer
So, I was on the cop board, and a guy has a problem: his partner has gas. One of our helpful regulars provided him with this resource. I herewith "pass it" on for the sake of scientific inquiry:
Everything you ever wanted to know about farts (and a few things you didn't)
For the record: I sympathize with the guy with the partner problem - being trapped in a unit with a gas-man can be classed as cruel and unusual punishment.