I did manage to dump a pan full of hot bacon grease on my foot when moving the pan from the oven to stovetop once. I was wearing shoes, no socks, and the grease piled up just at the top of the ankle/arch causing a rather nasty burn (coincidentally in the shape of a piece of bacon). I should have had it checked out then, but didn't.
But that's not the end of the story.
The burn happened on a Saturday. By Sunday we were on the beach in NC and I went in the water (drunk and naked, btw -- it was late at night) thinking, "Oh, saltwater, that'll be good for it. Or at least it won't make things any worse". By Monday morning the burn had blossomed into a softball-sized thing and I had to go to the ED/ER barefoot because I couldn't wedge a flip-flop on.
"Oh, never go into the ocean with a burn," doctor says. "That place is like a toxic stew out there..."