....HOW TO DECIDE WHO USES THE BATHROOM FIRST..... Unless you are very 
wealthy, there will eventualy come a day when you find that the number of 
people in your family exceeds the number of bathrooms available, 
with the result that two different people will have an "urgent" need for 
such a facility at precisely the same time. Here again, some simple politeness
can smooth out what might otherwise turn into a rather flagrant and unpleasant
confrontation. Note first that it is considered unseemly to compare the two 
respective "urgencies" in basic biological terms. While some etiquette mavens
have suggested the simple expediency of coin flipping, this can require rather
coarse references (under the circumstances) to such things as "heads and tails". 
Our own suggestion, you'll be pleased to know, is a fun one: a wholesome
game of Monopoly, with the winner, provided they've played scrupulously fair
and by the rules, being allowed first passage through the door of relief....