I worked at a retail store about 10 years ago, and had to leave my work area to get signature from one of the managers. Right before I left, I noticed my manager was acting a bit bizarre and I didn't think much of it because he told me he have a bit of a mental issue so I thought it was him just acting out (he kept looking to his left but fought to stay focused with what's in front of him).

When I came back from getting the signature, I saw some employees from other sections of the store gathered around my manager, who was lying on the floor, and I immediately knew something happened to him like a seizure. He went to the hospital and then came back a few days later to work. He told me he had a seizure that night and I wished I knew what was happening so I could help him.

Turned out he convulsed and hit the shelf behind him. I worked with computers and we had to put the computers that's "work in progress" on the shelves in the back of our section and the "manager's area" is right in front of the shelves so he went backwards, head first, into the shelf.

Scary sight to see but thankfully he came out of it OK but as of right now, I dunno what his situation is with the shot as I no longer talk to him nowadays.