Video #2, where the best man's pants fall, made my day. The rental tux I got for my wedding had a broken adjustment strap on one side, so I held it in place with a binder clip. Watching the video is like looking into a parallel universe of what might-have-been.
I almost lost my pants a couple times, the closest time was when we were asked to all jump at the same time (for a photo), I made sure to have a hand on my pants