Two little boys ages 9 and 4 went into a store,the 9 year old took up a pack of tampons and went to the cashierz,'i take it that these are for your mom?'asked the cashier, 'no' replied the boy, 'your sister'...'no'.'then who are they for?'asked the cahier. 'they are for my 4 year old brother, i saw this advertisement on t.v that if you wear these you can swim and ride a bike and my little brother can do neither of them