We do investigations sometimes.  I remember one day we were at a school at the request of the principal, but nobody else knew.  I was walking around the halls and one of the administrators thought I was a substitute teacher who was late.  We were there to investigate, so I didn’t correct her.  I actually enjoyed the class.  So did all the boys I was teaching.  The school said they were the best-behaved class all year and hired me on the spot.  I still love that job.