
But the number of people taking in lodgers to make ends meet is rising dramatically in the current economic downturn.
More than 200,000 British households now have a lodger - that's a rise of 15 per cent in three years and a level not seen since the sixties. The typical lodger-landlords are middle-class thirty-something couples.
Some of them have had their fingers burnt though. They've had lodgers who keep stinking food in the fridge, cook meals at all hours of the night, take umpteen showers a day and monopolise the washing machine. Then when they ask the lodger to leave, they dig their heels in and refuse to go.
Jenny and I simply wouldn't want to take that risk. Because however carefully you try to vet someone and predict how reliable and well-behaved they're going to be, you can always be fooled by someone who knows how to fake it and present themselves as the ideal lodger.
It's simply not worth the possibility that our cosy and comfortable domestic routine would be hit for six for someone who couldn't care less about our wishes or our well-being.
In my twenties I shared a few places with other people and sometimes it was a nightmare. They would invite all their friends round for wild parties, never do any housework, play loud music at any hour and leave food to fester and rot. I would have to move out rapidly and with a huge sigh of relief.
If all lodgers respected their landlords and behaved with sensitivity and courtesy, the idea of taking them in would be more appealing. Unfortunately too many lodgers turn out to be a law unto themselves.
PS: Okay, be honest, am I just mean and selfish and uncharitable?
PPS: Jenny points out that even if lodgers are a pain in the arse, they may be paying the landlord's mortgage. In which case complaints ring a bit hollow....