To add to this , contractors will scour every clause in a contract prior to and during the course of an agreement and exploit every loophole , every poor word choice , and every mistake maximally . In addition to mistakes made by public servants in the contracts these contractors also make a killing on change orders which they might foresee a necessity for at the time of bidding but obviously don ' t mention until after being locked in . This , in my experience as an infrastructure engineer , is one of the more compelling arguments in favour of P 3 ' s . And , of course , there ' s also corruption in government contracting from time to time . <| sep |> Good fucking no call . <| sep |> Yes it is . QOTSA sings sexy Jingle Bells . Watch it .