What would you do?

Hello, thought of a good idea, Gunna go round some of the video sites and pick out some videos that i like and ask you questions about em this is the first one i found and hopefully its all relativly new content so you arent all like "Oh My Gawd this video is like years old" so check this one out

http://www.liveleak.com/view?i=f55_1328175028&p=1

so what would you do in the situation would you leave the person in the video does?
would you stay and tell the people what happened?
leave a note?

I may do a few more of these if i get a high interest

let me know in the comments below