I wonder if I still have that pair of "special" d10s I confiscated during my campaign in elementary school. As I recall, I started to get suspicious after the third time in a row somebody rolled "00 - DISCOVERY!"
They had a 0 on every side. Kinda clever, yet at the same time stupid.
14 - Potion reverses the imbiber's digestive system for the next 1d4 weeks. Unless sustained by magical means, the user cannot eat anything except that which is inserted anally. Drinking will vary by the sex of the user. Performing bodily functions becomes extremely unpleasant, and the user and anyone nearby (within 60ft) suffers a -4 "Gross!" penalty to all rolls. This is a mind-influencing ability.