I normally like my GP's receptionists. However, yesterday I had to leave work early for a doctor's appointment. I arrived about five minutes late, which I didn't think was a big deal since I normally have to spend more than five minutes in the waiting area anyway.
When you get to the office, you have to enter your gender and date of birth onto a touch screen, and a message comes up saying "You have an appointment with Dr. X at x:xx (time). Please take a seat in the waiting area.)
So I entered my info on the screen and it came up that I didn't have an appointment. I went to the receptionist and told her I'd made an appointment that morning. She then looked up my details, and said to me, as if she was speaking to a naughty child, "That's because your late!"
I'm a grown woman; nobody should speak to me that way.
Of course, I had to wait 20 minutes to see a doctor anyway.