Few bills arriving in the mail are welcome, but certain billers are more daunting than others.Should the tuckpointer send a bill higher than agreed, a friendly discussion about his “extras” likely lies ahead.If the delivery kid shows up with the pizzas but asks for more than what’s on that menu kept in the kitchen drawer under the silverware tray, the difference may or may not be disputed, depending how hungry the crowd is.And unrecognized entries on the credit card bill may lead the cardholder to dispute …