Making my way through old shots for other projects often results in finding stuff I had completely forgotten about.  Before we lived in the Bay Area, I was there for some other reason.  I was down near the water and there was a film crew working on a production of some sort.  The character was on a dock and was approached by some other guys at which point he falls into the water.  There was a diver that got set up in the water beforehand for safety purposes.  Then they filmed the sequence.  I don’t recall them doing it more than once which made it easier than drying the guy off and giving him fresh clothes, I guess!