The tips is for only nagging telesales call.If a sales caller (person) is modest/understanding customer position of not capable/ready to buy, these tips appers to be sadistic to someone who is making life out of his/her occupation.It is true that we come across sales people/sales callers not properly trained/good at language, when motivating called customers but annoying discourage them from learning by experience.Provide tips to handle without annoying tele marketers