I my highschool physics class I remember the teacher doing a demonstration involving connecting 120V to a dill pickle. It lit up rather nicely, flickering and flashing for a few seconds it was connected. Then after shutting off the power another student dared him to eat it so he shrugged and took a bite. The look on his face was priceless as he almost choked and spit it out, he said he figured warm pickle wouldn't be too bad but apparently it tasted terrible.