Ok, I think I know the answer to this (ignore it) and it's not really a dilemma but..... I have taken on an extra class (as a goodwill gesture) covering for a long term sick colleague. Said colleague has taught the class for a couple of years and is very popular. I think my style is different and I occasionally get inklings that some students resent the change of teacher/style. Today I got the class to sign a Get Well card for him. It's a large class and several of the students wrote comments such as "sincerely cannot wait for your return' and 'please come back soon - can't wait' etc. implying they can't wait to see the back of me. They knew I would see these comments. I know they liked and enjoyed their previous teacher but considering how hard I work to try and give them quality lessons and the fact I like and enjoy the class it's made me feel really c**p (over -sensitive?).