I got a popcorn kernel so stuck in my gum behind the back molar that the dentist had to remove it. A few months later, the next time I had popcorn, the same thing happened. I haven’t eaten popcorn and I’ve flossed my teeth every night since, because I was only a pre-dentist flosser at the time. It’s been over fifteen years, and my gums are probably strong enough to handle it now, but I still don’t trust popcorn. I do miss it though.