I have a home office (proper office with separate meeting room etc, a whole floor of our house) and I still get a babysitter on days school is out and I can't n

I have a home office (proper office with separate meeting room etc, a whole floor of our house) and I still get a babysitter on days school is out and I can't not work that day. It's just not the same when you have to always reserve some brain cycles for thinking about what's going on in the rest of the house. A few years ago (children must have been 5ish and 7ish?) my sitter cancelled last minute. So instead, I told my kids 'if you can play all morning, without fighting and screaming so loud that I can hear you, and not interrupting me, I'll pay you what I normally would have paid the baby sitter'. It was the first time they could make their own money, and it worked perfectly. I tried again a few days later and it failed and haven't had to try since. Maybe an idea for all those that now work from home the first time?