
Yet while we will openly discuss relationship woes with anybody who will listen, we are somehow more reluctant to share details of our toilet business - even with those who profess to have fallen in love with us.
However, no relationship stays constant: they all evolve, through ups and downs, and that includes our attitude to the universal matter of doing a poo. Here are the 21 phases of every relationship, which we have kindly illustrated with a number of sweet-looking crap-based cakes.