"I'm not a good person. I just get bored. So I take on what Mick calls projects. It passes the time." He'd always done that, even outside this place. Leonard's mind was a lot smarter than he even thought himself and it constantly seemed to be underused, so it searched for new ways to occupy itself. But sometimes the projects did coincide with something a good guy would do. He balanced it out by frequently going about it in the worst way he could. "You're a chemist? Don't tell people that unless you want to deal with the consequences."