I keep a nude selfie picture of a former community college student, Erika, safely hidden on my phone as a warning and a reminder to myself:

Just a picture of this young woman in all her 18-year-old glory, when she decided to start sexting teacher.

 That was 10 yearsand two marriages ago, but it still stands as a starkinflection point for me. The moment when I had that first true lapse in self-control and judgement, and simply gave in and sleptwith a student. Once you start down that road, it's very difficult to stop. Believe me. REALLY.

Oh, and I also keep the pic to jerk off to...