This is so me.
When I get “bored” watch out! All bets are off. There’s no telling what I’ll do. Good or bad.
Bored isn’t quite the word I’d use though. I’d more likely use indifferent or apathetic.
When I’m in that state of ennui, feeling blasé, I tend to search for something to pique my interest. Oftentimes this is the end of me being “good” because what piques my interest might not necessarily be what’s best for me. I’ve gotten into more than one regrettable situation because…
Being “good” all the time is really hard work. (Could you hear me whining a bit right then?)