At work, at the copy machine, I let one ... I tried to stop it but could not. A gossipy co-worker smelled the fart, went to my boss and tattled on me. She also got a bunch of gal pals from her cliquey clique to bad mouth me to the boss. The boss called me in for a scolding, omfg, was that embarrassing. This nasty bunch of backstabbing bitches ratted me out for letting one out.
Do you work with a bunch of immature douchebags? Seriously? They have no manners or class...people make all sorts of noises and the polite thing is to not embarrass anyone, not that I think any of that is embarrassing...
I would write the date, time and brief synopsis of this in a notebook...you might have need for it as harassment.