DeHe - you described my PG 5.5-year-old son to a T. I tried to take him to the library where they had a Legos for kids to play with today. My son lasted maybe two minutes. He looked around the room and the other kids and then promptly pulled on me to leave. Some of the kids were his age, but he didn't want to know or even attempt to interact with them.

This part - "we dealt with this a lot in my DS 5's pre-k, the kids just didn't know what he was talking about, he used different vocabulary about different subjects and often the kids would just stare blankly. You could almost see them accessing their memory files, going this does not compute!!" - I couldn't agree more. It's rather challenging when your ds is using words and talking over kids heads. The other kids just don't know what to make of him/them.

Control is the number one mode of operation. These kids seem to want maximum control over their environment and every situation - or at least that's how it is with my ds.