Giving
someone news they didn't want to hear.
Asking
for something, which you believe the other person will have a difficult
time doing for you or giving to you.
Telling
someone they are doing something that is causing problems, either for
them, for their job, or for you.
Asking
someone to change his or her behavior.
Saying
NO to someone else's request or instruction when you didn't know how
to tell them why you were saying NO.