Well, I started observing titans really closely. They're what I spent most of my time studying... I tried to talk to them and be kind to them... so many people hated them over the years and it didn't lead them to any solutions. I thought, well, people will think I'm insane, but this is how I want to do it and how I prefer it! And when I softened, I could watch them more closely. I could still kill them, don't mistake me, but I moved towards designing weaponry and strategy to counter how they actually behaved, not how I thought they'd behave when I just looked at them and hated them and didn't think any deeper about it...