I need to put something in my calendar so people don't schedule me into meetings during a time when I'm out for medical reasons.
However...I don't know what to call it, or how to respond to people asking me why I have to leave. I'd use the "my kids need to be picked up" excuse, but they know I don't have kids. I'd put doctors appointment, but our calendars are public and I don't want to make an obvious lie. I also know I don't have to tell anyone, but saying "none of your business" or "it's too embarrassing to say" doesn't seem appropriate.
What's the protocol here?