Courage the Cowardly Dog - Season 1 Episode 13
King Ramses' Curse

Courage finds a slab that belonged to a dead guy named King Ramses. A guy named Professor Flith comes and says the slab belongs in the museum. However, Eustace (knowing its worth a lot) wont give it to him. So, the ghost of King Ramses comes and causes plagues to happen that wont stop until Eustace returns the slab to the museum. The first is a flood, the second is loud music, and the third is locusts. The slab is finally returned, but Eustace is now possessed by King Ramses, as punishment for his greediness.