Tutoring?

I left nursing education a few years ago, thoroughly disgruntled with nearly everything about it. The attitude of my holier-than-though program administrator (a Bible-thumping Christian who once cried to me about knowing her best friend didn't go to heaven because she wasn't a virgin when she married), the students who wanted me to open their heads and pour in the knowledge, the ones that I had to pass or we'd lose our state funding, and the school board that didn't think our program was worth paying for, meaning no increases in teacher's salaries for several years. Anyway, I have been perusing my local bookstores for publications that might help me in my current position as a PRN home health nurse and case manager, when it dawned on me. All these books are geared towards students. A good majority of allnurses members are students. There are oodles of nursing programs in my local area. I could hang out my shingle as a nursing tutor! Everything from the pre-reqs to math-for-meds to pathophys. But I have to wonder if anyone out there has ever done it and is it ethical? I'm no longer in the state where I was teaching and am no longer licensed to teach, would that make a difference? Thoughts anyone?