For you Sir, no charge... For Madam though that's $10...

Why...
Are some things free for one sex and not for the other? If I order a whisky and soda in a bar, the soda is free. If my wife orders a lime juice and soda and asks the barman to top up the soda she is charged for it! That is logical bollocks. Tea at Starb*cks. Why do I get charged progressively more for a small, medium or large tea when each cup only contains one solitary teabag? So is it the hot water I pay for? Yet if a woman were ask for a cup of hot water to warm a baby bottle… No charge.