This is likely a very effective way to get paid. I loaned a friend a large sum of money and she was supposed to pay me back 31 May. She did not do so, ignored my phone calls, voice mails, and emails. This went on for several months.
When I received an automated “out of the office” response to an email, I decided to call her mother. (She is 35 years old, but that was the only way I could think of contacting her, and her parents know me) That worked, partially, anyway. Three days later and she posted some of the money to paypal. All her correspondence since then, she states “do not call my parents. They do not want anything to do with this.”
She still owes me money, but she is no longer blowing me off completely. I still get a bunch of “check is in the mail” stories, so I may have to call her mother again.