My friend can fit nearly her whole FOOT in her mouth, but then she's a bit of a freak. She can also lick her elbow, which I thought was impossible, but she proved me wrong.
1) How did she discover this, When I'm bored I don't think "Maybe I can put my foot in my mouth".
2) Why would you want to put your foot in your mouth, I wouldn't (I dont wear shoes usually)