The lines might be cheap, but the people who get on to talk with you need to be paid for their time or they will leave and get some other job where they don't get yelled at so much for trying to scam people or where they don't talk with people who give them the occasional hard-to-understand gibberish and inaccurate data that leads to their frustration and eventual disconnect (would I do that?...). Just choose your times and targets appropriately and only waste their time when you are able to continue with your own work or play as you batter them with useless information or small talk.