One time my niece and I were going through Chattanooga and she said that she was going to swim across the Tennessee River and I told her she couldn't because there were piranhas in there. I didn't think that she believed me until a couple weeks later when she came home from school and told me that her teacher was talking about the fact that piranhas are only in the Amazon and my niece spoke up and told her "na uh they're in the Tennessee River too because my aunt said so". Oops......I didn't think she believed me.