hello yes I have more thoughts on this.
It is key to my personal #myshane that he does not have an autism diagnosis. As a kid he was maybe brought to a specialist, and they looked at him and diagnosed him with Rambunctious Little Boy, because it was the 90s and he wasn't experiencing any significant delays! He was just throwing himself in puddles constantly, and he never stopped wiggling, and his favorite game was Toddler Rave Chamber, in which he shut himself in the bathroom and flickered the lights off and on for as long as it took for his parents to find and stop him.
Wrapping small child Shane in heavy, sweaty hockey gear was an unexpected lifeline in the ongoing battle he's been waging against his body. Gear is heavy. It pressed him into himself. Any sweaty feeling was a bonus, because wet fabric against skin is A Distinct Feeling and that feeling also helped him get the minimum sensory input needed to function effectively. Underarmor would also be a favorite.
(For context: my brother is an autistic sensory seeker. Aside from the ongoing sensory stuff he has very low support needs at this point in his life. I am pulling from Life Experience living with him, I am not spouting autism stereotypes out my ass)
I don't know if monkey bars were a playground staple for Canadian kids in the 90s, but the proprioceptive input from them is GREAT for baby Shane. He's too socially aware to do any visible repetitive motion stims, but sports and playground equipment that involve flinging himself around in space are the best. If there's a convenient puddle on that playground, you'd better believe be is sticking his feet in it. Wet shoes are heavy and heavy things on his body Feel Nice.
The one other sensory thing that I believe in my heart he is doing (and he is NOT growing out of) is chewing. The hoodie-string-sexting shot is foundational for me. He's bitten through a dozen pens. He's chewing off his fingernails. If he had long enough hair, you'd better believe it would be in his mouth. He's chomping on his mouthguard like it's a chew toy. Somewhere in the depths of his juniors teammate's myspace page is a pic of him straight up biting a beer can in half. It's played off as a joke, but if something looks like a nice texture it WILL go in his mouth. It's a matter of when, not if. He’s a biter because Oral Sensoru Input Very Good, and he will never be stopped.