Don't Be A Doormat

Leaders stand up for themselves, politely. Jerks stand up for themselves rudely. If somebody interrupts you in a meeting, simply say, "I'm sorry, can I finish?" If your slimy co-worker tries to dump her work on you, say, "That won't be possible." Does this mean you never do a favor? Absolutely not. You do do favors, but you do so because you are nice or because it benefits you and the company, not because you can't say no.