That wasn't quite what Terrence had meant. He didn't feel caged, right now, he just - well, he only had two legs, couldn't run as fast, couldn't bite as hard. Even in the best possible physical shape he could be in, he wouldn't come close to the physical power of a hyena.
But that twisted stuff, needing to be set free, well. Being an Animagus certainly helped with that, but he gave in to his animal instincts all the time. Every day, more than once a day.
"It's a lot of hard work, yeah," he said. "Transfiguration is my thing, you know, my favorite subject, the one that came easiest to me. But it still took me more than two years to teach myself, and get really good at it."
He would probably help her, if she wanted. But only if she was motivated, and not wasting his time. Which meant she'd ask, if it was important enough.