There can be a chance of survival. For example, if the man jumps from a single - storey building roof and lands on grass or some kind of cushioned area, the impact may not be as severe. Also, if bystanders call for an ambulance right away and he is rushed to a hospital where doctors can treat his head injury and any other possible injuries, he might survive. However, the situation is still very dangerous.
Well, when a man jumps off a roof and hits his head, he is likely to end up in the hospital. He could lose consciousness right away. Depending on the height of the roof and the surface he lands on, he may have other injuries too, like broken bones in his body. The impact on the head is especially dangerous as it houses the most vital organ - the brain.
Survival is highly unlikely. When a person jumps off 11 stories, they are hitting the ground at a very high speed. The impact is usually so great that it can cause multiple life - threatening injuries, including severe head trauma, broken bones all over the body, and internal organ damage. But, in some freak accidents, if the fall is broken by multiple obstacles on the way down, it might be possible to survive, though it's still very improbable.
One possible reason could be depression. When a person is deeply depressed, they may feel hopeless and see no way out other than taking such a drastic step. Another reason might be some kind of financial crisis that seems insurmountable to them, like being in huge debt with no foreseeable way to pay it off.
There's no way to tell for sure who the man is without more details. He might be a worker, like a roofer who is doing his job on the roof. On the other hand, he could be a person with a secret mission on the roof. Maybe he's a spy waiting for a signal or a fugitive hiding from the authorities.
This was the plot of Sherlock Holmes.
In the first scene of the movie, a bus was hit by an obstacle that suddenly appeared on the road. The roof of the bus was cut off and the passengers inside died. Holmes and his assistant Watson (Moriarty) investigate the matter and discover that it is a mysterious crime. The identity and motive of the criminal are still being investigated.
Jane (McGraw), the assistant of the heroine Sherlock Holmes, had to bow her head and ponder over the unfair treatment she had suffered. Holmes used his wisdom and reasoning ability to finally uncover the truth of the case.
Well, without more context, it's difficult to say precisely. Maybe it's a story where the man on the roof has a special view from up there and he witnesses something unusual. It could also be that he's stranded on the roof and has to find a way to get down, which could lead to an adventure of sorts.
Possibly, 'a head over our roof' represents a hidden guardian or a lurking danger. The author might use it to create suspense or to introduce an element of the unknown. Without more details from the story, it's hard to say for sure.