At 79 years old, Carol Thebarge, a long-time substitute teacher, is out of work. It’s not because she’s retiring but because of a flap over Facebook. “There’s a paranoia about the Internet and I think that we’re not realizing how valuable Facebook can be used properly,” said Thebarge. Affectionately known as Mrs. T, Thebarge taught for nine years at Stevens High School in Claremont, New Hampshire.