Drown plug
If you’ve never been at sea, you probably have no idea what happened to this boat. Apparently, after dry-docking this vessel, the captain forgot to remove the drain plugs. The drain plugs let bilge water out of the boat. We’ve never been on a boat either, we had to Google all of this information.

Anyway, because they forgot to remove the drain plug, the waste water couldn’t escape. This caused the boat to tip over and sink. The gentlemen standing on the pier look like they’re about to engage in fisty-cuffs. We’d probably be mad, too, considering how much fixing up a boat can cost.