So, my son's great-aunt is an occupational therapist. She decided to do tests at her house on my difficult child and 3 other children that were there. 2 kids were 8 (1 being my difficult child), 1 was 9 and 1 was 10 (the only girl). So the test was, each child sat on a frisbee-type swing, on a string. They were spun around for 30 sec to a min or so and were told to walk a straight line when they got off. 1 by one, each child stood up and looked like they just stepped out of the local pub, stumbling, some falling... except my difficult child. He got off, absolutely no probem. So, they did the test with him, again, this time lengthening the spinning time to about 2-3 minutes. Same thing. He got off just as easily as he had gotten on and walked a perfect line. What does this mean???