Visitors, Please Don't Visit Us!

I went to the doctor yesterday. My doctor's office is part of a hospital complex of offices, such that by the time I get to the check-in window, I've already passed through common hallways and elevators, as well as my doctor's own waiting room.

Then, there, next to the check-in window, is a sign saying: "Visitors: if you have the flu or flu-like symptoms (body aches, chills, fever, [etc.]), please don't visit us today! Help keep the new babies healthy!"

Question 1: wouldn't it be wise to alert visitors at some point before they're in your office that you don't want them there if they're sick? Because really, since they dragged their sick butts out of bed to get there, you don't think they're going to leave, only to have to come back at some other time, do you?

Question 2: if you're scheduling appointments three months out, and even then they're hard to get and at awkward times of day, what do you think are the chances that someone will really not show up to their appointment? Especially if they've already gone all the way to the doctor's office only to find out that they're not supposed to be there?

Good luck with that one.