Off topic, but short and somewhat amusing, so moderators forgive me.

During a summer in college, I worked for a famous "illusionist" as part his travelling tech crew. The supporting cast included a set of blond twins, a set of red-headed twins, and a set of black haired twins. Being the lackey, in addition to walking the dog, I had to arrange for passport photos and rush applications to be submitted for each as the show was going to Europe.

Hired a passport agency guy came to take care of it and he really freaked out when only 1 of the two was available for a few of the sets. Told him that the other girl would be here shortly. Ended up resolving the situation when I made the girls go out and change their tops to be the other twin.