Pete,
I guess it's no different to just about any other persons job, in that it ain't an exciting, stimulating, bundle of laughs every day of the week.
I'm sure we all have days when we think there must be something different, better, more enjoyable to do to earn a living and keep the bankers in stupid bonuses and civil servants in gold plated pension schemes. And then we realise that there could also be a lot worse things we could be doing, like working for an ungrateful boss, having to clock on & off, put your hand up to go to the loo, work silly shifts, take holidays when your told to, not when you want to, go into the same old place every day, see the same old faces, listen to the same old moans & groans.
Think I'll stick to running my own Carpet & Upholstery cleaning business for a bit longer yet.