cheese!

This is casu marzu cheese from Sardinia. It has maggots and burns in the mouth. When the maggots eat the cheese, they release an enzyme that putrefies the cheese's fat. If you choose to eat the cheese with the maggots, convention tells you to cover your eyes so no maggots will jump into them. If you choose to eat the cheese without the maggots, put the cheese in a paper bag and wait for the sounds of the suffocating maggots to stop. Although in Sardinia the cheese is technically banned, it is readily available on the black market and its ban is rarely enforced. It is typically eaten with bread and red wine.
A Wikipedia article about it is here.