Dear Pissy Nurse:
Yes, I suspect I stayed over one minute recently in the conference room you had reserved because I had a patient in there.
The rule in this facility is when I need to use that expensive piece of equipment, which is used frequently for patient care, but stored in a conference room, I can (and will continue) to use it. I even rearranged the appointment so you wouldn't be disturbed. Why you wouldn't give me one extra minute to get out is odd, because I was done exactly when your appointment started.
It's a tragedy that meeting got moved again, but let's remember, in the grand scheme of things, what it's really all about.
Sincerely (I will bump you again, if it's for a patient),
RehabRN