Welcome back ladies and gentlemen of the internet. Sibling rivalry is no joke. When you argue with your sibling, things get heated quickly. You know just how to poke each other's buttons, you understand all the words and vulnerabilities that will hurt your sibling. Growing up with someone together is bitter sweet. You are either going to be each other's best friends, or worst enemies.
This brings us to the Reddit thread. In this story, the original poster (OP) is an unmarried man who's having some strife and family drama with his sister. In his home, he's set up a room specifically for his expensive Lego sets and other collectibles. To an untrained eye, this might seem like toys for children. But for OP, it's his hobby. It isn't just a passion for him, it's also costly and delicate. Of course when his young nephew asks to play in his Lego room, OP declines, but not without sparking drama with his sister.