When it comes to food, when do you pussy out? How old is too old to eat? Luckily, once again, history has supplied us with an answer. Apparently, if it's been around since before expiration dates were ever invented, it must still be good. Just ask the intestinal masochists who ate the following pieces of ancient history and lived to tell about it.

3 1,400-Year-Old Cheese Found in a Peat Bog

As a food critic in Ireland, it's no wonder one would tire of soda bread bake-offs and lively debates over the proper ratio of blood to pig offal in black pudding, but Helen Lucy Burke went as far as theft in an attempt to challenge her potato-dulled palate.

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At a museum event displaying ancient stored cheese (because apparently people are willing to look at anything if it means coming in out of the rain), Burke snatched and ate a piece of "bog butter" -- dairy scraps and farm leftovers that, 1,400 years ago, had been packed in intestine, stored in a wooden barrel and buried in a peat bog.

She described it as "rancid" and "athlete's footy," yet "not revolting."

No. Of course it wasn't.