Care and Feeding Photo illustration by Slate. Photo by Andres Barrionuevo Lopez/Getty Images Plus. Care and Feeding is Slate’s parenting advice column.  Have a question for Care and Feeding?  Submit it here . Dear Care and Feeding, My husband and I were called into the principal’s office of our 13-year-old daughter “Bella’s” middle school yesterday. Apparently Bella went around writing the phone number of a girl, “Dana,” she doesn’t like on the walls near the boys’ restrooms accompanied by a “for-a-good-time-call” note. Worse, she also spread a rumor that Dana is charging money for blow jobs behind the dumpster during lunch period. She ended up getting a month of in-school suspension. As you can imagine, my husband and I were appalled by Bella’s behavior. We made her write a letter of apology to Dana and she has lost her phone privileges for the rest of the year.…