1. “This is the way it’s always been done.” - something most often said to you, not by you.
2. “It’s not my fault.” - should you always take the blame for someone else's fault?
3. “I can’t.” and 7. “I’ll try.” and 8. “This will only take a minute.” may simply be honest assessment. "Yes" people are usually far more dangerous than "I will try people".
4. “It’s not fair.” shouldn't be used towards life in general, but may be applicable when talking about not having raise 3rd year in a row.
5. “That’s not in my job description.” - also not to be used everyday, unless you repeatedly asked to do someone else's work (and that guy is getting his raises).
6. “This may be a silly idea …/I’m going to ask a stupid question.” - appropriate when you are trying to make sharp turn in the discussion. Helps to wake everybody up.
9. “I hate this job.” and 10. “He’s lazy/incompetent/a jerk.” really only belong on this forum. No-one holding gun to your head forcing you to work with jerk on the job you hate.
"For every expert there is an equal and opposite expert"
Arthur C. Clarke Profiles of the future