Trust me on this.
And in case you were wondering about Rules No. 1 and 2 ?
Rule No. 1 has to be- NEVER believe them when they say they will participate fully in the childcare.
They may change the odd nappy but this first flush of enthusiasm will evaporate pretty quickly once the novelty wears off. By the time your child is sitting GCSE's and you're pulling your hair out over homework, whatever promises they made in the hazy afterglow of the delivery room will be history.
Rule No.2 - and this one is very important ..... do NOT be fooled into thinking that sleepless night belong only to the baby phase. The real problem comes well after that when your partner starts to snore , all night , every night.
Anyway the boiler is fixed now and peace has been restored. Shame really because the problem , if you can call it that, was that the heating would come on every time the hot water was heating. Not really a problem eh on these chilly mornings ?