When I consider someone has ripped me off, put me down, pushed me too far. This is a sign that I really have been taken beyond all reasonable limits. I know this because I often get remarks such as -"I don't know how you put up with it" "I never would've taken that from her" "Just say no to them" etc. And it's NOT because I have a thick skin, it is a combination of very low self esteem - ie I don't deserve to be treated any better, and being brought up in a culture of forgiveness, and turning the other cheek. In other words my offense-ometer is set too low. It makes me a nice person to be around, I make friends easily, I almost never take offense, however it also means I can be pushed around, abused and assumed to be gullible. And generally I internalise the results of this treatment.
It is also quite rare for me to really know what I want or have a strong opinion about anything. Again externally I am easy going, but on the rare occasions when I do - wanting to have a baby or own my own home or be near my family...I need to be able to stop at nothing to get it. It is totally unacceptable to let the things that are important to you pass you by because someone else has a stronger opinion.
In my new life, when someone oversteps the mark, I am going to look very carefully at my reaction. NO. It is NOT "OKAY" for you to leave me with all the work, put me down in front of my colleagues, subdue me and my dreams. I need to firmly and politely say NO.