Picked up the boy from school earlier and his teacher took me aside and sheepishly

[Sir C]

I've only ever seen his mum (well, the limited part of her face not covered). She's a total sour-faced bitch who I have never seen make any attempt to interact with any other parents.

Actually, that sounds a bit like me

You should make her kid watch as you pour boiling water over her. You've got to set a good example here, for fúck's sake.