Some of the quests in Sea of Thieves have you following a map to dig up treasure, and some of this treasure can be contained inside Cursed Chests - chests that imbue you with debilitating status effects. One is called the Chest of Sorrow. Once aboard your ship, the chest occasionally starts to cry, filling below deck with salty tears and forcing you to bale the water out before you sink.

For more magical treasure boxes, here are ten Sea of Thieves Cursed Chests we'd like to see. 

During the closed beta, some players found a workaround for this particular chest. They would strap it to their back and hang off the side of the ship, on the ladder, causing the tears to fall into the ocean. This exploit will be fixed for launch.