How The F*ck Did That Happen? Is a game where we say that something has happened and someone else decides how it happened.
Here are a few examples~
Person 1: A 17 story building was destroyed, how did it happen?
Person 2: The elves have had enough of the goblins taking all the money, so one of the elves dressed up as a goblin, messed with a few pipes, and got out before the building exploded.
Person 1: Jeff broke his arm, how did it happen?
Person 2: He was playing a crazy game of janga when all of the sudden, someone threw all the pieces at him with the strength of Goku.
Person 1: A squirrel ran in the middle of a street, how did it happen?
Person 2: The road was covered in peanuts, so really, the squirrel was being smart and got food for the neighborhood squirrels.
So I shall begin.
A boat sunk in shallow water, how did it happen?