Ergo decedo

Okay kiddo, let me try to explain what "ergo decedo" means. Imagine you are playing with some friends, but one of them keeps being mean to you and not playing nicely. You ask them to stop, but they keep doing it. So what do you do? You decide to leave and go play with someone else who will be nicer to you. That's what "ergo decedo" means. It's like saying "if you can't behave nicely, I'm going to leave and find someone else who will treat me better." It's a way of standing up for yourself and not letting someone treat you badly.