One of her aliases is CupcakePuppy44. That's parent, author, and former teacher Sharon Duke Estroff's Instagram handle. She created a join account with her 10-year-old after some stonewalling and some external investigation (with kids, fellow parents, and psychologists), not to mention a certain amount of hounding by her daughter, who – not unlike other 4th- and 5th-graders – indicated she was … [Read more...] about Undercover mom on Instagram