Don't know whether I'm a good person or not but my gut reaction would be to help. If other people were already helping at the scene I would probably pass on by.
Ha, ha, ha!!!! I've just re-read my answer. I can't stop laughing!!
I was reading a text from my friend (who said she'd just banged & HURT her toe on the doorstep) when I was typing that!!!! Which made me type hurt instead of help!!!!
I shall rephrase it:
"I would stop to HELP anyone in distress or in danger"
I would help you Hollywood style by barging through the crowds loudly stating that I am a doctor and then ripping bandage strips from my flimsy outfit to patch you up (cleverly revealing just enough flesh for the male onlookers) and then I'd cut a tiny slit in your throat and stick a straw in it. Then you'd go into cardiac arrest and die, and I'd dramatically resuscitate you shouting, "Live dammit!" and bring you back to life.