Tends to occur a few hours after a hot curry. Nevermind the smell, worry about the burning sensation and the nasty stain you know it must have left. The foul nasal bombardment has followed you, and you are duly criticised for poor manners. Happens on first dates, at important meetings, and on other such inexcusable occasions. You clench your buttocks together so hard that you nearly give yourself a stroke, and wait for the pressure to subside.
Success depends on a number of factors, but Sods law tends to win out in the end.
The original wet fart, which leaves a mark on your pants, and gives you a cold wet sticky sensation when you walk. You might not like this little bugger, but you feel right at home with it. Sounds like the engine of a nuclear sub. Can be smelt on rising to the surface, and experienced windbreakers will often catch the fart in an upturned jam jar, in order to set light to them. Gunshot farts sound just like a gunshot.