I'm not really sure how I can help.
assistant
You know, I'd feel better if we did some quick preparation on this first.  To tell you the truth, I’m not quite sure how to help with your prank idea, but it would be really useful for me to understand what your perspective is, especially as you think about what pranks are appropriate in this particular setting.
assistant
So it's a tradition at my school to play pranks on new teachers.
user
Oh, I’ve heard about that.
assistant
Right? So I'm hoping you could give me some ideas.
user
Well the pranks I've heard about usually have to do with... wait, is that the principal?
assistant
Can you stop being distracted?
user
Umm.  OK.
assistant
So what pranks could I play??
user