I suppose it's to be expected when you work for a non-profit organisation, but at work there's just far too much to be done and not enough person-hours in which to do it.
So when my mum gets a pay-immediately demand from the power company which whom she has a direct debit arrangement, and wants me to ring their call centre to sort it out, there's only one thing I can do.
"Mum, I'm so busy I haven't got time to piss!" I protest.
And even though I'm saying this is in beginner's level Cantonese, I'm pretty sure that a born and bred home-villager would have said it the same way (but with added cussing).
But it's almost true, you know. And she believes me.