The first and last thing to drive me is a desire to be good to other people. Theres no better feeling than being in the right place at the right time to help someone in need! I get excited and stop for cars on the road hoping I can help change a tire or something. One time, I had to stop in a hurry to help a guy push the car on to the shoulder, I quickly helped, and no sooner we got it off the highway multiple 18 rigs came through on the 2 lane highway, I probably saved their life! Or maybe just prevented more accidents. Either way, try it, be good to others, and it will come back to you! One way or another.