Im going to give the background on why I ask this question.
I went on a ride up montara today and got too the peak. 2000 feet of elevation, it was invigorating. I even beat my best time up, 50 minutes

On the way down there is an area called the crack which mostly people who have dh bikes ride down. I walk down it as a shortcut(otherwise I'd have a 2-3 mile ride all the way around the side of the mt). I decided try to ride some of it though. I went directly into a big rock and did a nice over-the-handle bar flip. Ouchies, scrapes everywhere but heres the worst
http://img151.imageshack.us/img151/5...ture0244ss.jpg
Anyways, this fall horribly bent my rear rim(I just payed the bike shop to have it trued this morning

)On the way down my rear tire pops. I repair it, but I dont have anything to buff the area so I pray it will hold. 5 minutes later it pops again, in a different place. I figure something to do with the bent rim, duh! Anyways I just walked the rest of the way. Now getting to the point, I must have past 5-6 bikers and only one guy asked if I needed a patch. I didn't need one, but I was surprised at how many people went by without even offering help.
So would you be a good samaritan and help someone out in need? be it a blown tire, or something wrong with their bike?