Her son Kevin, 23, (the real name has been changed) has been living with her rent-free for the last 13 months while saving up to buy his own house with his girlfriend (who also lives at the house). But when his mother asked him to help her apply for a health benefit for his 22-year-old brother, Kevin refused. His mother got frustrated as Kevin didn't want to participate at something that family needed, so she decided to show him how much he benefited from living with her. She sent him an invoice called "Unappreciative Son" which totalled $39,254.17.