Work at a store as a courtesy clerk?, people at stores such as ralphs, vons etc use phones right? anyways if you know how to dial outside(go to back like receiving area) and dial 1800-382-5630 and transfer it very quick to a checkstand that you want to get back at (or put on hold like line 1 or something)then go back to the front end like nothing happened. keep quiet don't say a word cuz it is a porn number and you don't want to get caught watch for cameras people lol (they did this at our work)