I've seen that sign too many times to count and every time I think of London. The biggest challenge in his young life is to understand how to manage all of the strong sensory inputs he feels and to find calm. He's doing very well and we are so proud of him. It breaks my heart when I see him struggle with his energy.
The Occupational Therapist uses a program called "How does your engine run?" to help London understand that all of the extra energy he has sometimes can be like an engine running too fast. When his engine is running too fast he gets easily frustrated and his arms and legs flail about and usually end up squeezing something (like his sister's head or my arm).
At school, London has kept his engine under control but he gets a little fidgety in the afternoon. (I hear that most first graders loose a little control at that time of day.). We've sent along a squishy toy for him to hold/squeeze/pull/bite or whatever he wants to keep him from touching his classmates too roughly. He's had a tougher time with the after school program, so we hired a babysitter so that most days he can play quietly at home or go to the library. That seems to work much better for him.
The kids have long days, so nighttime can be rough. We try to get them to bed at 8 and I've started saying a bedtime prayer with them. We pray for safety and family and for calm. One day London will understand how to work with his body and he won't feel like he's always fighting his engine.