Brace yourselves, thinking is required

What's inside the human mind? If it were an open box, would you ever find the exact same content, regardless of the situation they're facing? Trying to figure out all the possibilities of what's really rushing through the mind of someone is a daunting challenge.

A contest inside the Word of the Week contest

This is my entry for POB's ninth Word of the Week contest held by @caluman, and you are hereby invited into deciphering the personality, character traits and the past and future of whoever is the protagonist in the following story. You don't need to write a book about him, but try being imaginative.

Every participation will be rewarded with my upvotes. Better answers will get better upvotes! Mine is worth at least 0.80 POB tokens, if that means anything to you. It does to me, so show me how well your brain works, and that's how I'll show I value your comment.

The Outrageous Bystander

Cars came to a halt. A whole street worth of dense traffic angrily responded to the abrupt crash at the crossroad. They wanted to move on with their businesses, unaware of the lives mercilessly being taken to the afterlife, their souls drifting away, sip by sip. It was nobody's fault. Those who had seen the accident happen had trouble believing the amount of bad luck involved in the situation. Of course, some people around it hadn't seen the full picture, so they quickly started to throw blame.

A reality shock overcame every eyewitness, spreading out as curiosity lured in from afar those who had been sane up to the moment they'd also set their eyes on the corpses. The most common reaction was being incredibly nauseated. Second from the top was screaming and running away. Elders would weep, somewhat less impressed than others, despite feeling an awe they hadn't felt in decades.

Comparable to a nightmarish character's ending from a Final Destination movie, the gruesome view lasted for what seemed to be hours. Close by, a man sat at a bar. His eyes didn't show discomfort, disgust or revolt. Nobody would be able to guess his own kin were the ones who died. His life as he knew it was over, but there was no shock, no feeling. When everything was over, he walked away. Like the unsettled drivers before being interrupted, he still had business to take care of.

Your participation will be very welcome. I hope you like my idea and have fun trying to figure out what the protagonist has in mind. There is no true answer, so go as wild or traditional as you want. I look forward to every entry!

Image sources: [1], [2], [3]