Not exactly a “confusing moment” but I did finish the film wondering whose coins killed Otis Sr.? I expected to find out by the end but you don’t. You find out at the start.
As Otis Jr. is starting his day, in the first post-credits scenes, he is listening to the radio and you hear about the expected high winds and some missing hikers. Safe to assume it’s their screams we hear and whose loose change falls from the sky.