recently, I have saw an English series 《you me,and the apocalypse 》.Jesse saw a little part ,it's about the outer space rocks hit to the earth ,people go into the underground bunker to avoid the destroying of the human being.And I ask him : if only one of your parents can go into the bunker, which do you choose ?he answer without hesitating :mum!(Actually, I don't feel suprises to this answer )Then,I ask him:if mum and dad fall into a river,which one do you want to save firstly?he think for a long time. And I laugh to him:you need to save neither of us, because we are both good at swimming ![呲牙]