It turns out that there are reasons besides the risk of mortal peril that you should not leave your baby unattended in the bathtub

Like when your baby is a freakofnature genius. and when you leave her alone for TWO minutes, manages to:

1) locate a bottle of bubble bath
2) unscrew the lid
3) figure out how to increase the water turbulance so as to make bubbles; LOTS of bubbles.
4) calculate the maximum volume of bubbles required to make you freak out
5) laugh at you when said freaking out commences