Again and again we are confronted with the reality - some might say the problem - of sharing our space with other living things, be they dogs, trees, fish or penguins.
I have managed to infuriate the bank bosses; acquire a fatwa from the revolutionary guards of the trades union movement; frighten the 'Daily Telegraph' with a progressive graduate payment; and upset very rich people who are trying to dodge British taxes. I must be doing something right.