Saw 3D's Costas is Watching You

Nearly two-thirds of the way through "Saw 3D" there comes a scene wherein the primary target of one of Jigsaw's traps must extract two of his back molars in order to find a numerical code etched on them. Let's put aside the fact that etching numbers onto someone's back molars, while still in their mouth, without them realizing the numbers are there, goes well beyond the realm of fantastic. What's more interesting about the sequence is that it almost immediately begins to feel like a snickering metaphor for the "Saw" franchise.