Please look up vyvanse rage. This is a real side effect of that med. we had to switch my son to focalin. It sounds like you have some tools you can use for disrespect. Removal of video games or earning time on video games, removing a phone if he has one, and offering friends over for good behavior on the weekends… these all have helped with my son. Removing football for my son is a last resort bc it really does help with adhd symptoms.. so I am not suggesting you remove hockey.. however my son does know if I get any reports from school he misses practice for the day… and it has really helped. Get on the same page with dad… come up with a behavioral plan, and have dad handle your son for the most part. At this time in his life mom needs to step back.