Same House.

In season 5, Michael sends several origami to the same house, where Jacob is. Isn't it stupid to send origami to a house if he doesn't know who lives there? Because if he knew that Sara had remarried, that man could have been an agent of Poseidon or Poseidon himself. Why not send origami to different places like Sara's work or Mike's school? For example, he could have sent a letter to a guard at Fox River to give that letter to Sara.

I understand that they wanted to show that Jacob controlled everything.

I understand that he turned to T-Bag because what he wanted was to kill Jacob. But playing dead and making Sara feel that pain, that's where I think he made a mistake.