12 Horror Movie Idiots Who Caused Their Own Doom
4. Slow And Steady Kills Off Jeff - Saw III
Saw isn't a series known for its smart and competent heroes, but Saw III's Jeff Denlon really sets a new bar for being dumb. A father who has become neglectful to his daughter following the death of his son, Jeff is put through a selection of trials by Jigsaw aimed at helping him learn forgiveness, move on and spare a life.
However, Jeff is probably the worst person in the world to put inside a Saw trap. He takes forever to make any decision, and usually messes up the traps when he does eventually choose to do something.
He fails to really learn anything from his ordeals (a big no-no in the Jigsaw rule book), and comes bundling in during the finale of Saw III, shooting Amanda Young, refusing Jigsaw's ask for forgiveness and slicing his throat. Not only does Jeff rip out the best thing about the Saw franchise in its true killer, but his final act of vengence is what dooms his wife, Lynn, to her death.
As Jigsaw lays dying, he taunts Jeff one final time and activates the collar around Lynn's neck, triggering an explosion that kills her and hammers home Jeff's failures.