The tongue thing was actually due to the prosthetics needing to be kept moist to prevent the glue from drying out under the lights. It kept curling up, and to prevent the shooting from having to keep being interrupted, Heath did it so they could keep rolling.
The makeup artists found a better way to keep them down, but by then it had become a character trait.
The makeup artists found a better way to keep them down, but by then it had become a character trait.