Consider the following conversation:
Mentor: What is your progress?
Me: blah.... blah... blah...
Me: What about other tasks (if any)?
Mentor: Do not worry about them, I can handle, if any. You focus only on your own research work
After a week, while I am doing research work, the mentor comes to the lab suddenly, and then the conversation will be like
Mentor: There is a class today with the syllabus X for batch Z.
Mentor: Go and deal. It will be in an hour.
Me: I am aware of X, but don't know in detail.
Mentor: Not a big deal. Carry on with today's class.
This is a sample scenario. There will be many tasks like this with very shorter deadlines.
The only issue I face is maintaining a trade-off between personal accountability and stress. By behavior, I want to be more accountable for any task done by me. But due to the shortness of time, I sometimes experience so much stress (in order to maintain accountability).
How to deal with such mentors?