The Great Bowl

For generations, pets experienced what they believed was the work of sorcery: They would empty their food bowls at night, and in the morning, the bowl would reappear, filled with food again. It was later revealed to be the work of humans, but the Legend of The Great Bowl continues to be honoured.

(It was previously known as the Feast of the Great Pyrenees until the Pyrenees decided they wanted to do their own thing.)