My parents raised me right, and so therefore I have always been very comfortable conversing with people of all ages. When I was maybe 7 or 8 I was chatting with this elderly gentleman and I was so impressed by his nice white straight teeth and so I told him so. I asked him, "did you have braces when you were a kid?" I went ON and ON about his awesome teeth.
Finally he said, "Do you want me to take them out so you can get a closer look?"