I've read reports about how TV actually changes the way the brain works. But for every "professional" who says one thing, there's a dozen who says otherwise

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We actually just came back from Panera. There was a preschool girl who was running full-speed around the place. Eventually, a young lady came by, seeming to be "looking". I asked her if she were looking for a little girl, then pointed the way she went. The lady smiled, said thanks, and went on. A few minutes later, the little girl was running around again, and then hid under the table. I laughed, and told Carl that "obviously" the kid needed medicated

! Seriously, though, I felt it was more of a parenting problem. I'm not saying my kids would have "never" ran around like that, but I would have been right on it and once I got hold of the child, his little fanny would have been plopped down on the chair in no uncertain terms!!! I also would have had something for them to draw with or look at or something, and might have said that "if you're good", when we leave here we can (run at the park, watch a video at home, go to the library, etc.). But it didn't even occur to me that the child was doing anything other than being a child.
Again, I DO know there are exceptions! People like your friend are the reason I don't fuss about putting one of those backpack "leashes" on kids. It really IS a safety issue, NOT an "abuse" issue! In my mind, abuse would be allowing the kid to run wild instead of doing whatever needs to be done to help control him.