"I have a husband, and sex outside of my marriage is fun," she said. "He doesn't know what I do, but I'm very careful STD-wise and really only do it once or twice a month. It's not much different from having an affair."
So that's all right then.
Next up, a pedophile explains that sex with a 2 year old is okay because it isn't much different from sex with 6 year olds. And besides, it's fun, and they only do it once or twice a month anyway.
I come from a family of teachers, but I couldn't imagine ever becoming one: it's such a futile exercise.