Button! Button! Who's got the button?

I wore this dress today and well, you see the last button there at the bottom of the dress? That button is cruicial! Sometime today in my wearing of the dress and without my knowledge that little button came off. I didn't notice it until I was walking back from lunch and felt more breeze than I should have. So, if you were walking behind me today and saw more than you wanted to, my apologies.