(for party guests)

1) Don’t bring one. If your host thought it would be good to have a
watermelon they would have bought one themselves.

2) If you do bring one, cut it yourself. Don’t just bring it and leave
it somewhere, expecting the host to think about it , find a knife and
cutting board, and serve it. It won’t happen and no one will remember
about it until they’re cleaning up and find it after the party is
over.

3) If you bring one and it doesn’t get served, take it home. Don’t
expect your host to have to deal with largest possible food item as a
leftover.