This is a common problem for kids with ADHD. They are not meeting expectations/disappointing others/ in trouble so often that they try to avoid it at all costs.
It’s important for you to stop adding personal moral or ethical judgement to this action. It’s not disrespect. It’s a brain that functions differently and is filled with more challenges in everyday life. And, kids with ADHD are 2-3 years behind their same-age peers in many ways developmentally. You’re really parenting a 4 or 5 year old in many ways.
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism