My dream

Last night . It was a really, REALLY wierd one. I dreamt that I went on a vacation with my family and we went to some national wetland/marshland place to take pictures of birds. Well, my maternal grandmother,(who in real life has been dead for years) was driving. She was not doing a very good job of it, and she ended up driving us into some sort of pond or marsh. We all somehow got out of the car ok, but I lost all my credit cards and cash at the bottom of that pond! At the end of the dream, The car was being pulled out, and no purse of mine was find. I was fretting on how to get my money back, and then the caymans came into the pond! It was creeeeepy because it seemed so real! Anyone ever had a dream like this?