1. In meetings - working

2. In transit - before and after working hours

3. Having in person chit-chat - working

4. Taking a break - remote workers should also take these

>> I've had the opposite experience

I think it depends on the type of people you're working with. I've found hand-on engineers (i.e. people writing code) are really available and perhaps they shouldn't be. Business-type people are so much more reliably flaky.