That is the story of my ASD2 son growing up (now 32). He still does the adult equivalent, in terms of impulsive actions with no anticipation of consequences.All kids do dangerous things because they don't understand danger, but this is the kind of thing I have to watch for 24/7. If that wood pile was not stable it would have certainly seriously injured him or even killed him. He doesn't listen to "NO" he just covers his ears and does whatever he's obsessing over, no matter the danger. Twice in the past 2 weeks he ripped his hand out of mine and ran into the road one time and in a busy parking lot the other. With my knee still recovering, there was no way I could catch him and all I could do was literally pray that he didn't get hit. Raising a child with severe autism is not for the impatient or the faint of heart.
What you are seeing is actually two conditions.
- He has the base social/communication issues that are experienced across the whole spectrum. (He thinks outside of the NT box.)
- From your description, it sounds like he lacks a healthy "executive function" [XF] and, possibly, is OCD. These are not traits of ASD1, but frequently seen in ASD2/3. They are evidence of a brain injury on-top-of ASD(1).*
As an autistic, yourself, you may be able to connect on point #1. (I do with my ASD2/3 children.) But his behaviors that are tied to the aforementioned brain injury are going to be as foreign to you as they would be to any NT parent (because we do not share that common ground).
In our experience, we just had to be a physical barrier when necessary. Most parenting strategies expect/require the child to have a capacity for age-appropriate XF. (As an aside, our ASD3 daughter [now 25] exhibited a marginally better XF than her ASD2 brother...)
We didn't know this at the time, but finding strategies for managing children with TBIs may give you another angle to try.
*See Autlanders, Thriving Outside of the Box: Autism Subtypes...