I have been there myself. However, my situation was a little more public. I had managed to catch the skirt of my dress in my panties, and proceed to drive to the theatre to catch a movie. I was standing in line at the concession stand when two older ladies politely informed my of my situation. I had walked from the parking lot, through the door, and across the very large lobby of the theatre showing off my panties. I can only imagine how red I was when I offered my thanks to those ladies. My only saving grace was it was weekday afternoon, and the theatre was not that busy.