SoCaled 

Haven't ever helped anyone out on the road, but I have ended up helping stranger's on bikes in my neighborhood. I live in a place where people come to ride. More than once I have seen a group stopped to discover they have some maintenance issue, I always check to see if they have what they need. One time, my offer to help with a flat (pump) was turned down, only to have one of the riders excited to see I was still available when they realized their CO2 did not quite fill the tire, I grabbed a pump and got them sorted. Offered the use of my repair stand to another rider who was having some rear wheel/derailleur issue that was not easily solved, I was a bit late on that one, they had already struggled through most of it asked where I was 20 minutes ago?. A couple of times I have provided hex wrenches for seat adjustments and tightening things that came loose.