As a counterpoint, I'm not in teaching but many of my colleagues workdays are heavily disrupted by childcare, so they compensate by working odd hours, sending e

As a counterpoint, I'm not in teaching but many of my colleagues workdays are heavily disrupted by childcare, so they compensate by working odd hours, sending emails or slack messages at 5am or 1-2am etc. It's not that they expect everyone else to be working these odd hours at all, just that it's the only time they themselves can catch up on work. One colleague who is a manager even has a note to this effect in his email footer, explaining he doesn't expect others to action or respond to messages outside of normal working hours.