 So I'm a dentist, but I never, ever in my wildest dreams thought that I would actually use what I learned through C4. And most of you probably think the same thing, but there was in Kabul on the 26th. ISIS set off an IV at the airport, which killed 182 people. The scene was, the scene was chaos. This was just minutes after the explosion. There were still small arms fire having to come all around us. And immediately began triaging. That was what I did in C4. That was what I trained to do. And that's what I didn't really got out there. I was moving through dozens of patients, triaging with my two partners, as if they were just mannequins and that was the most efficient way for me to do it. It was as if I was back at C4. I remember at C4, on the Masscatch Day, they had, I think, 30 to 40 casualties for us. They got kept coming in waves. I remember being triage officer for that exercise and we were overwhelmed by that number of casualties, which is so much. But that night on the 26th, we took back 65 living casualties. That's how many people we had to help. It was overwhelming. And this train did a really, really good job of preparing me for that. And of course, I never thought I'd find myself in this situation. It can happen, you know, if anyone wearing this uniform can happen to any person. So take it seriously, learn this stuff, review it every now and then, especially before the appointment, and be ready to do your job, because you'll save lives.