When I know someone is at a doctor's appointment for a few hours, is it appropriate to ask them to use sick time? They didn't originally document it as such, and I'm sure they made up their work in other ways, but I'm struggling to find the balance between flexibility in the current situation and enforcing workplace rules. Are they getting all their work done? Are they working flex hours, so it doesn't matter if they're away from 11 a.m. to 1 p.m. because they work a few extra hours later in the day or at night? Is your sense that they're on top of their work and overall working the total number of hours you'd expect in a given week? Do they put in extra time when the work requires it?