I'm affronted! She called me a nonsense bag! What a cheek - doesn't she know a scientist when she sees one? When an adult fills a bath full of bubbly water and leaves it for two minutes, what is a baby to do other than test whether books float? How else am I supposed to know? She says the only reason I'm still alive is that I floated kids' books and not adult ones! What kind of mother is that?!