Or that if you're setting up a small sound system somewhere far from all stores that's the day you will forget some vital plug in. You will be then left alone to entertain people while your partner drives back into to town to get said piece of vital equipment. You will not know, and nobody will have the necessary competence, to tell you that one of the speakers isn't quite working properly. When your partner returns, an hour later, with the chord he will then discover that his pickup doesn't work and he will play into the second mic. and be unable to sing thus leaving you without any harmony. Later, when others have showed up to help, he will head into town to find out that he needs a new battery in his pickup (battery? there's a battery?). By the time he gets back and everything is ready the whole thing is over and everybody has left and you're packing things up again. It was kind of funny, but I check packing a little more carefully now. Just when you go very quiet and intense is when the outside door will bang open for a newcomer. People tune twelve strings during a cappella songs.