Why No Problem is a Problem

1. It's Not Fair

Everyone knows that life is not fair. Say 'it's not fair' simply suggests that you think work-life is supposed to be fair, and you are unhappy with the way things are.  Instead of saying "that's not fair", you should stick to the facts, stay constructive, and leave your interpretation out of it. For instance you can say, "I noticed that you gave bigger budget to Alan. Would you mind telling me what goes into that decision? I like to know why you my budget is smaller, so that I can work on improving my work in future."

2. No Problem

When your boss asks you to do something and you say no problem, you're implying that his request is a problem by itself. This makes your boss feels that he has been imposing on you. Instead, say "I'll be happy to take care of that".  It's a sublte acknowledgement that you have positive attitude and you take your work seriously.

3. I'll Try

This must be the worst, for 'trying' implies that you will work hard until it becomes difficult and give up.  Nobody can try at anything and be successful. We have to take full ownership of our capabilities.  If you're asked to do something, either commit to it or offer an alternative.  Say "I'll give my best" will surely lead you to success. 

4. It's Not My Fault

Casting blame on someone means that you are not accountable. Instead stick to the facts and and never finger point. Offer solutions, not blaming. This is because finger pointing is often the start of office politics and will invite retaliation. 

5. I Can't

This is similar to "It's Not My Fault", for it signifies that your capabilities are limited. Bosses don't like to hear "I can't" for it means "I won't".  If you think that you lack the skills or resources, ask for help instead. 

6. I hate this job

This is the last thing anyone wants to hear at work for it is nothing but just complaining. Doing so labels you as a negative person and brings down the morale of the group.  Bosses hate such people, so don't say this unless you want to lose your job now!

7. We always do things this way

This must be the most stubborn phrase of all. It means that you are not willing to try new things and prefer your way to your boss' way. It is suicidal.