My little grandsons tell me they know some bad words that I must not say. It's so tempting to ask them, but I hold back......then they assume permission, and begin:
'HE SAID Harry is stupid.....that's a naughty word, nana!' (Big grins on their faces
'Well HE SAID Amber is a idiot....that's very, very naughty and if he says it again, he'll get sent to Mr Southern (head teacher, arbiter of good manners)
'You shouldn't say that, should you, nana? Stupid poo idiot boy!'
You can say 'poo' but you can't day stoopid idiot, can you, nana?'
I attempt to deconstruct the argument, but I am no match for two four year olds 