Some people can be really unpleasant. My mom had gotten a call that she had won a free carpet cleaning, and had set up an appointment accordingly. Of course, we should have known, the free cleaning was nothing more than an advertisement for a 2500 euro vacuum cleaner. The guy demonstrating it got riled when my mom told him she wasn’t going to buy the vacuum cleaner (who would, at 2500 euros??) and refused to let him go upstairs. It took a long time to finally get rid of him. Why do people have to be so manipulative and persuasive, even when they see you’re not interested? I’m glad I have no interests in a career in sales, being that way would kill me.