I think wintergreen lifesavers emit light when you crunch them. That's how you get girls to agree to turn off the lights when playing post office. https://en.

I think wintergreen lifesavers emit light when you crunch them. That's how you get girls to agree to turn off the lights when playing post office. https://en.wikipedia.org/wiki/Post_office_(game) https://en.wikipedia.org/wiki/Post_office_(game)