Sweepy, I would only add that if you feel angry about this change and you want to tell your new T don't, don't don't, I think I would not change it to nice wording if it is really against your will... For me, your "a little bit angry" phrasing also means something and I wouldn't use a nice and polite wording if I really was extremely angry, it would be a bit fake for me... But I agree with others that I would add more reasoning, like why your T shouldn't do this or that, more explanation you add - better, quicker your new T will able to understand you...