A private school in Washington encountered a unique problem. Many 12 year-old girls started using lipstick. They would put it on in the bathroom, and press their lips against the mirror and leave prints. The maintenance man washed the mirror every night, but the girls would do the same daily. The principal called the girls and told them that the prints became a nuisance for the man. Principal asked the maintenance man to demonstrate how much effort goes into cleaning the mirrors. He removed a long-handled squeegee, dipped it in the toilet, and cleaned the mirror with it. Thereafter, no lip prints were ever found on the mirror.
Moral - There are teachers, and then there are Educators.