I have.
I was eating a pound cake, sitting on the floor, when someone sneaks up behind me, and surprises me.
Well, I got surprised, all right. The uneaten piece of pound cake in my mouth, shoots up into the webbing between the back of my mouth and my nose.
JESUS.
FUCKING.
CHRIST.
Talk about pain! I spent the next three hours alternately making a snorting pig sound, and flexing my throat muscles, trying to get this shit out. It's PAINFUL.
Finally, it all fell out with about two inches of muscus surrounding it. I promptly threw it outside, where I imagine some animal must have eaten it.