When I was little my Grandma would take me thr dentist for my regular cleanings. After the fluoride she would tell me now you're not allowed to have candy for a month because of the fluoride. She would get the dentist to agree with her. I believed this for a couple years until I mentioned how it's not fun having to wait a month to eat candy because of the dentist to my friends at school. I knew something wasn't right when I realized noone knew what I was talking about. I went home and told her I knew the no candy after the dentist wasn't true. Her response was "well I'm suprised I got away with that for as long as I did".