I don't like those bloody people who stop you in the street doing research or other pish... They usually ask me if I'm over 18 and I say no... Since i look about 12, it always works. A flatmate of mine used to have to work at an insurance place cold calling people, he worked on commision as well... Most people were not that rude to him, he usually got about 1 or 2 "fuck offs" a day.