Beacuse the health unit says so. THAT'S why.

WHAT is with people and their frickin dogs this week? The sign that says no dogs means you too. Really. Yes. You. It doesn't matter what size, shape, age, or type of dog you have. It doesn't matter what the weather is like. Unless it is a seeing eye or other service dog IT CAN NOT come in. Even for a few minutes.
Don't act like we're the ones who are being rude by telling you your hairy companion isn't welcome. We have that sign on the door for a reason.

My head may explode.