<Table> <Tr> <Td> </Td> <Td> This page is an essay . It contains the advice or opinions of one or more Wikipedia contributors . This page is not one of Wikipedia policies or guidelines, as it has not been thoroughly vetted by the community . Some essays represent widespread norms; others only represent minority viewpoints . </Td> <Td> Shortcuts: <Ul> <Li> WP: COW </Li> <Li> WP: WORMS </Li> <Li> WP: CANOFWORMS </Li> </Ul> </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This page is an essay . It contains the advice or opinions of one or more Wikipedia contributors . This page is not one of Wikipedia policies or guidelines, as it has not been thoroughly vetted by the community . Some essays represent widespread norms; others only represent minority viewpoints . </Td> <Td> Shortcuts: <Ul> <Li> WP: COW </Li> <Li> WP: WORMS </Li> <Li> WP: CANOFWORMS </Li> </Ul> </Td> </Tr> <Ul> <Li> WP: COW </Li> <Li> WP: WORMS </Li> <Li> WP: CANOFWORMS </Li> </Ul> <Li> WP: COW </Li>

Where did the term open a can of worms come from