Is this good luck?

I had another acupuncture appointment the other day. Elizabeth drove me there since I feel too relaxed to drive afterwards. The office is in a semi-residential neighborhood, so she brought the dog so they could both go for a walk while I was in the appointment. While they were walking, a bird crapped on Elizabeth's head. Isn't that supposed to be good luck? Please say it is. Or maybe we just tell people it's good luck so they won't feel so bad about having poo in their hair.