During basic training, we were getting a safety briefing right before going on this teamwork obstacle course, and one of the guys in my platoon had a seizure right then and his tounge blocked his airway and he died. This was before we had any of the medical training in the first week or so of basic. And the drill sergeants hadn't started the briefing yet, they were off somewhere else on the course having a little pow wow or something.
I saw a guy having a seizure at the grocery store once. He fell over and busted his head on some racks. Everyone went to look all so I cut in line and got out of there with some stuff. pwned.