Higgs didn't really think he had much useful things to say about how one went about becoming a teacher. He knew that Alicia was doing something along those lines, but somehow suggesting that Caitlin could ask her seemed a bit of a stretch. So instead, Higgs just gave a nod and offered a thanks for the cup of tea Caitlin provided him. She was young still, which in turn meant that there was plenty of time to choose to change a career if she chose to. Higgs, as much as he liked kids, didn't think he would ever be particularly good at teaching them. Not to mention that Higgs didn't think he had any skills he could teach kids. He'd never been very good at school and whilst he was more than capable training recruits, it wasn't quite the same. Tiny children didn't really appreciate being shouted orders at, Higgs was quite sure. Not that recruits did, really, but the hierarchy did work a bit differently.
"A roadside bomb," Higgs replied almost easily. He was surprised at how easy the answer came. There was a time, a very long time, when Higgs couldn't even consider what had happened, much less say it out loud. The support group he'd been going to hadn't really felt like it was improving how Higgs felt but now, being able to actually answer Caitlin's question rather than brush it off? Well, perhaps the group was helpful. The weird sense of dread was still there, still accompanying the fact, but Higgs could actually tell her the fact. That in itself was progress that Higgs hadn't quite noticed before. "It's not a joyous story, I'm afraid," he joked somewhat because the idea of going into details was still too much.