I had a glimmer of hope. Had. Now the hope is gone, all gone...
Last night Simon pooped in his room. Pooped. In. His. Room. A giant turd and five or so smaller turds. Of course this was about two minutes before clean-up time. I was in the living room with Jonas (who was pretending to pee on the potty) when I realized Simon was being too quiet in his room (again, anyone who has kids knows with the exception of sleep times, quiet = bad). I went in to check and there, in the middle of the room, on his Ikea playmat, was a giant turd. I mean this turd would be big for an adult. It was huge and there was a trail of smaller turds behind it. Simon had poop all over his legs, too.
I herded the boys out of the room, shut the door and got Simon cleaned up. Then I disposed of the turds and then rolled up the mat and stuck it in the garage. At least it fits in the washing machine.
I'm completely giving up on potty training Simon. He can just learn to change his own diapers.