Had to happen I spose living with me,4 kids and an insane dalmation. She just watched a report on tv talking about the coming rise in the price of petrol. When it finished she said.
"The price rise never really affects me,cos I only put 20 pounds worth in at a time,so my bill is never more than 20 quid"
This is either "girl logic" or a sign of insanity!