I think this is about the worst suggestion since the window tax and the fireplace tax.

But... I knew a family with several children - fortunately all boys - squashed in a small council house, who knew another family in another council house where there was only a couple, with a number of spare bedrooms, who persistently refused to move. The family with children had been on the list for upgrading for some time, and were unhappy about it. (I know that they perhaps should have thought before enlarging their family so much, but not everyone is, how shall I put this, capable of the degree of ratiocination necessary.)

Penny