If doing what you would normally do at work when you’re off is called a “busman’s holiday”, then surely doing what you would normally do on a day off when you’re supposed to be working should be called a “postman’s holiday”.
If doing what you would normally do at work when you’re off is called a “busman’s holiday”, then surely doing what you would normally do on a day off when you’re supposed to be working should be called a “postman’s holiday”.