Who cares anyway? One of the great things about folk music is that it's a great leveller and classless, and probably the last thing anyone talks about is what their day job is. My profession has only been mentioned once above, and I usually keep quiet about it as I'm off duty when I'm folking. It sometimes features in my songs, which may give the game away.
I also do some song-writing but don't have the background that some folk have to write a cutting edge song - miners, ship-builders, oil-riggers, shepherds, etc. My Dad was an insurance man, but I've still managed to write a song about it!