I knew one driver, in his late 60's, who picked up a shabbily-dressed black man in a very ritzy area. I would have driven right off with my doors locked (they were always locked) because a shabbily-dressed black man has no legitimate business in such a high-priced area.
But my friend did pick him up. The passenger immediately put a .38 pistol against my friend's head and pulled the trigger, then jumped out and ran (he was caught and got something like 30 years).
The bullet went straight through my friend's head, hit nothing, and came out his cheek. He drove himself to the hospital, walked into the ER, and collapsed.
When I asked him if he suffered any long-term damage, he said no, except he had a plastic eardrum. He also knew the exact amount worker's comp paid for his surgery: $142,634.73 (I just made that up but he knew to the penny what he surgery cost, and it was over $100,000).
Every driver I knew who was shot was shot by a black male. One elderly black driver I knew was shot in the back of the head point-blank by a 15-year-old black kid armed with a .22 pistol (he also got 30 years).
Since the visual part of the brain is in the back, the bullet hit him there (and he told me it was still lodged there since the surgeons weren't going to cut on his brain to remove it).
He said the only side effect he had was that his eyes watered, which they were doing when he told me this story in the taxi office.
His mistake? He picked up a 15-year-old black kid.
I had exceptional situational awareness. In other words, I was paranoid. It served me well for five years.
Such situational awareness/paranoia is always a characteristic of a nulticultural society - and driving a taxi is as multicultural as you can get.