I was in court one time and just after a witness was asked to swear, somebody rattled off a quacking duck fart of epic proportions. I had to leave I was so convulsed, the judge was laughing so hard his head was in his hands.
Sometimes when I have my earphones in I can't tell whether my fart was loud or not.. so I have to judge it by looking at people's reactions. It's a pretty tense moment.