I'd have to say that instructing on an Enstrom would be pretty dangerous.
Just kidding. I had an offer to do freelance instructing to a few chaps with on of these nightmares. On the intro flight for me (I was not yet rated), the engine started coughing and sputtering. I didn't take the job, needless to say.
Like the others have said, sloping ground, logpad landings; anything near the ground.