Yes, I have, and I’ve gotten funny looks, too. We had a salesperson to come here once. He was young, in college, and desperate to sell some sort of books, and he braved the “Beware of Dog” sign to come up to the door. The two pits were friendly to him; calm and mannerly, while Sugar Britches was dying to tear him up. He told me the neighbors warned him of the mean dog and he was looking for the pit bulls to be lethal, not the Shih Tzu.
You need one of those “Beware of Dog” rugs with bite marks to put in front of your front door for your Shih Tzu. ;)