They will expect you to negotiate yourself, by either submitting, or attempting to fight back; what they won't be able to understand is someone who doesn't even participate in this sort of negotiation in the first place.
Yep. And depending on the way you opt out of the negotiation, you may be perceived as either very low self-esteem, or as an arrogant bastard.
The latter category (which I personally have been categorized as a lot) tends to happen when you assume that all people are supposed to be equal, dammit, and refuse to give ground to anything that isn't Right with a capital R. This results in the problem of causing others to have to lose face when you win... and people don't like it.
(Later in life, I've realized that it generally works better to arrange things so that other people can receive status strokes by siding with you, and they then tend to return the strokes.)
Followup to: Do you have High-Functioning Asperger's Syndrome?
LW reader Madbadger uses the metaphor of a GPU and a CPU in a desktop system to think about people with Asperger's Syndrome: general intelligence is like a CPU, being universal but only mediocre at any particular task, whereas the "social coprocessor" brainware in a Neurotypical brain is like a GPU: highly specialized but great at what it does. Neurotypical people are like computers with measly Pentium IV processors, but expensive Radeon HD 4890 GPUs. A High-functioning AS person is an Intel Core i7 Extreme Edition - with on-board graphics!
This analogy also covers the spectrum view of social/empathic abilities, you can think about having a weaker social coprocessor than average if you have some of the tendencies of AS but not others. You can even think of your score on the AQ Test as being like the Tom's Hardware Rating of your Coprocessor. (Lower numbers are better!).
If you lack that powerful social coprocessor, what can you do? Well, you'll have to run your social interactions "in software", i.e. explicitly reason through the complex human social game that most people play without ever really understanding. There are several tricks that a High-functioning AS person can use in this situation: