Mentors do it for free!

True! But is one who teaches mountain climbing a tormentor?

Ooh, tsuwm - you are surely not implying the foul calumny that we Brits might ever have a tendency to adulterate suffixes, are you?

And yes, I agree with you, Father - this way madness lies! Pandoramonium? I guess this is where my (doubtless arbitary) sense of euphony is my own guide - hate the sound of mentee, hate it with a passion. Actually, the more I think about the parallel words and others like legatee, the more I think I hate them all! Maybe I am merely a handicapee in this respect.