Into a well, a drop of rice falls from your rice bowl. You were eating out of your rice bowl on the side of a well, and some rice fell out of your rice bowl and this drop of rice proceeded to fall all the way down.
Just then, the don (どん) of your local mafia shows up, steals your rice bowl, and shoves you into the well. You’d gotten on the don’s bad side, so he came to teach you a lesson. The don steals your rice bowl and shoves you into the well.