Though once I caught a kid (maybe it was the GC) "going swimming". When he got to the ocean, he just started to walk on the water. Maybe the action should have been "showing off"!

I did have a strange glitch the other day. Opened a game that had bee running for a while, and all the villagers get reset from a "starting" position. I was scrolling through the details list looking for any that were sick and spotted a woman holding a fish and said that she was nursing for 84 minutes! (sorry no pic) I checked her actions and she was coming from the ocean holding a fish and when she got to the food bin, the fish went away and her baby was back. It just looked very strange for a while...