Good point.
I was in a similar situation about 13 years ago. A dude affiliated with a different gang showed up to a rival gang's party with a chick. They stomped dude under the floor and the chick he was with got hit in the head with a 40 and split her shit open.
I tried to be the good Samaritan and take shorty to the hospital. I carried her to the elevator, when we got to the entrance of the building, there was like 30 mfs out there waiting to fuck dude and shorty up some more. They looking at me with shorty thinking I'm with her. I nearly made out of that mf with my life.
I always said I'm staying out of other people's altercations from now, but I know me, if I saw shorty get hit with a brick, I couldn't just stand there and watch. But I understand why somebody wouldn't want to get involved.