These days I ring up the supplier and ask what the deal is if I wind up with shyt bud. If I sample it before leaving and I know its shyt then I give it them back. If I can't give it them back I'll not use their service, just to let them know who's money it is... But I always tell them in a polite manner that the thing they just sold me is whack, shyt, dudd, whatever I feels like saying. If I feel like saying nothing then I'll do it and take it like a man, and remind myself to check before exchange..