Continuity mistake: The bloody bullet wound is seen on Tapp after he's shot. When he is shown after he falls on the ground, the bullet wound is not there. (01:27:50)
Continuity mistake: The bloody handprint on Lawrence's shoulder that Adam makes at the end is visible before he actually makes it. Second, when Adam finds the tape recorder, it flashes back to Lawrence saying "why?" before Zep tells him it's the rules and the handprint is also visible, but shouldn't be there as Adam made it after he killed Zep. (01:29:40 - 01:33:10)
Continuity mistake: When Adam pounds on Zep with the toilet seat, he grabs his shoulder in pain. In the first shot of him holding his shoulder, his hand is soaked in blood. In the second shot, however, his hand is much cleaner. (01:30:25)
Continuity mistake: Jigsaw's thumb moves between shots after Adam gets the mini cassette recorder out of his hands. You can see Jigsaw's thumb, in the closeup shot, slide down to a position where it's lying horizontal and flat on the floor as the mini cassette recorder is being slid out of his hand. In the next shot, an overhead, you can see that his thumb has moved and is now more curled and in a more vertical position to where just the tip is touching the floor. Jigsaw isn't dead, so he could have moved, but this shot is an *instant* cut, he had no time to move.
Answer: Jigsaw's traps would more than likely leave a person mentally unstable, which could result in Stockholm Syndrome, a condition which involves a victim sympathising with their captor. In fact, after Lawrence Gordon escapes the bathroom after severing his own foot, Jigsaw nursed him back to full health, thus gaining his trust (this is shown in Saw VII). He also plays mind games on people, which is shown in a flashback in Saw III in which he convinced Amanda to side with him. In her unstable state of mind, she realised that he was the first person in her life she could actually relate to, and thus became an accomplice.
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