So, there is a very simple rule when living with three other women, Heather and I agree. You must take a shower when no one else is home. Otherwise, any time you so much as think the word 'shower,' you will hear the telltale crank of the water starting up in the bathroom, and you will be shit out of luck, wether this happens at 1:30 am or 9 am. It's just the rule.