I've been breaking things my whole life. I get a thrill out of finding out not how things work but how to make it fall apart. I edit people's writing for fun, attack arguments like they were foreign invaders, dismantle sports plays as a hobby. I like finding out where things are wrong and why they are that way.
Do the same thing at the job. Just look for ways to shred that happy little piece of code you wrote. Do everything I can to make your app crash and fail. My goals? To break something so bad it catches fire....Not there.....yet.