we always offer them some cash and usually get the haul. after we get done with what was in the yard or field we come back and give them a tip usually $10 or so and say we done a little better than we thought we would and see if they have anything else. we have gotten to pick thru barns and sheds and even gotten an old truck just because we went back and of course we pay them again for what we get we have only been scrapping since august or so and get several repeat calls and referrals. thats how we roll a side note since i joined all you guys on this site ive been scrapping less and computing more