This is exactly the reason why I feel it is my responsibility as a passenger to keep paying attention. I've been a passenger with really sleepy people twice, once on the way back from a party and once on the way home from a 24 hour day of work in Belgium. I was sleepy myself too, and I don't have a driving license so I couldn't drive either. It was very scary and uncomfortable, these were the scariest 400 or so km's of my life.
I'm glad you can still tell this to us Uel. Hope you all recover soon.
ps> You're right, those pictures are rather graphic