I enjoyed this thread, as I have debated the same thing. I came to the conclusion that since all humanbeings are fallible creatures you shouldn't trust anyone. No one has your best interest at heart but yourself. Instead of trust I think more about a persons loyalty as a reflection of their character. Is that person usually loyal to his word. Loyal to his friend who is stranded & needs a ride. Loyal to his or her customers. These are just my quick thoughts