As a wedding photographer I can tell you that organizing a large wedding party can be, let’s say, stressful for the photographer.
When I was in all three of my brothers weddings, we tortured the wedding photographers to tears. When you dress up a bunch of fun people on a special day you are going to have some spontaneous combustion going on.
This photo is half of a 36 person wedding party, not one of mine, we just rolled up on it in the streets of down town Chicago. I couldn’t resist grabbing a shot of the “late for the photo” bridesmaid.