YTA Your son was having a good time doing something creative and relaxing. With this interest, he was and is causing no harm to anyone. He appears to be a fine kid who works hard at school and at his profession. So you've penalized him for working hard. Parenting at its finest, disciplining a youngster for good behavior. You must examine your poisonous, controlling behavior, because this is not the way to establish a loving relationship with your child. Not to mention that a lot of that lego is really valuable, and it was stolen from your youngster. YTA - pay him back monetarily; you'll never be able to make up for the emotional harm you've caused him, but it's a start.