David Rivera recently had someone "unfriend" him on Facebook: His own child.
For months, Dr. Rivera, an obstetrician in Lombard, Ill., had been exasperated that his 25-year-old son, Nate, often complained he was broke and asked for money, yet posted photos of himself on Facebook taken at bars, restaurants, movies and concerts.
Dr. Rivera says he tried to talk to his son, a senior in college, about his spending habits, but his son refused to listen. Frustrated, he finally wrote on his son's Facebook wall: "I can see what you are blowing your money on, so don't come whining to me about money."
"I think they figure that their friends are watching but we're not, because they think we are old and decrepit and we barely know how to turn the computer on," says Dr. Rivera, 54-years-old, of being a parent.
In the new era of helicopter parenting, more and more parents and kids are meeting up, and clashing, on Facebook, MySpace and other social-networking sites.