yo, i was sitting here thinking about when i've gotten a blister in my mouth. i don't think it's happened. seriously. and then i wondered how that could be. i've kind of burned my mouth on hot tea, but not to a blistering state.
i'm one of those people who picks at food and eats it so slow that it's usually sufficiently cooled. : )
however, i do remember getting 56357476546 blisters when i first started running. in fact my blisters got blisters and i lost a few toenails (even worse, over sandals season!!!) until i figured out exactly what shoe/sock combination i needed.
such good memories. : )