Not sure being stabbed would leave anyone “fine”. The traumatic memories can last for years.
I still have nightmares about the time I woke up on a Saturday morning to the sounds of a disturbed and dying woman screaming after she doused herself in gasoline and lit herself on fire at Dorland and Guerrero.
Some of the screams were from people who had tried to help her and ended up injuring themselves.
https://missionlocal.org/2012/07/apparent-attempted-suicide-...
When I was a (fairly reckless) teenager, I got into a fight and got "stabbed" in my side (minor wound). Honestly, it's not something I consider as traumatic.
It _was_ an effective way to stop the fight though.