im no stranger to crash scenes. one of my good mates has died at 180km/h ive witnessed 2 of my mates in their cars crash in front of me (one guy rolled) and another mate lost both legs street racing, just to mention a few unfortunate ones.
i don't really think of these incedinces as a 'lesson' to stop driving fast, i just look at their mistakes and learn from them, in terms of my driving.