I had a guy pass out on a flight from ORD to LAX last summer. I was in the window seat and he was in the middle. He started to rest his head on my shoulder and I pushed it back. He rested his head on the other PAX who got quite indignant and tried to wake him. He couldn't.

He went for a FA who came back and tried to wake him. She couldn't either. I thought he was seriously drunk. After a while he was able to say his name but quickly went unconscious again. Since we were just 30 min from landing we went right in and paramedics were waiting.

They carried him off on a stretcher while we waited.