Mind-your-own

I could tell she wasn't impressed -
by me.

‘Why aren't you working,’ she asked.
‘I am,’ I said.

‘So why are you just sat there drinking coffee,’ she asked.
‘I'm not - I’m going about my business,’ I said.

‘And what's your business’ she asked.
‘Mind-Your-Own’ I said!

Image; Art Johnstone ‘Flat white Sir. Small, medium or large? (mind your own business)’