There was an absolutely scary one I had a few years ago, I was travelling from Boston towards Washington DC on the Acela Express during my annual visit for the Getaway , it was a bad time in my life and I was having quite a rough time. I fell asleep and I had a dream, In the dream I was in exactly the same place ,on the train and the Guy sitting opposite was there also working on his laptop as he had been when I dozed off. In the dream after a short while he offered me a chance to use his laptop on Wi-Fi to do my e-mails and stuff so I called up the Mudcat and read my own Obituary!!! It said I had stuck my head out of the train window and been decapitated by a trackside gantry!!! Then I woke up, and stayed away from windows for the rest of the trip.
If I have time later I will write up the dream (also about dying)that left me gasping for breath and is easily the scariest dream I have EVER had about the Angel of Death in the white lacy dress that may become a song!!

"No time to say goodbye No hugs or kisses
Only empty spaces left for those that grieve
Just the piercing frozen glance that never misses
Reminding us that life is like a leaf
It's once spring sap is dried and in the darkness
It is falls to ground in winters dark caress
And in that beige light room her bright eyed starkness
The Angel of Death in a white lacy Dress"