So what would you do?
You walk into the tea-room at work (and by 'tea-room' I mean converted broom cupboard with a sink and a microwave in it) to find a colleague busy washing up his mug and happily letting rip a massively trumpet-y fart (and by 'trumpet-y fart' I mean a very high-pitched 'brrrrrrrrrrrrrrt').
Said colleague then turns and sees you, pauses for a second, and then turns back to continue mug-washing without batting an eye-lid.
No one should be able to cope with office-based embarassment that easily!
I wanted him to wither and stutter out some lame excuse ('er, it was the pipes', or similar).
But he just walked off, leaving me there to decide whether or not to walk into the fart-laden air of the tea-room (smelling other people's farts makes me feel dirty).
I decided to put off having my coffee for a little while.
I'm sure this colleague would be happy that I now think of him as 'fart-man'.