Ok, so when I read the questions, my initial reaction on what I'd reject more was forcing a change of idea, so that's how I voted.
Now that I've skimmed the rest of the thread... have to say, when I read 'forcing into a physical experience' I didn't want to do, my mind didn't even go in the direction of torture/rape/etc. I guess I was thinking more generally, more benignly.
I was thinking of an ex-boyfriend I had a long while ago, and some of his subtle manipulations. I even hate to use the word manipulation to characterize it, because he may not have been doing it with intent; it just came across that way to me, so that's how I'm describing it. I just constantly felt like he was trying to change my inner workings, my core self, that I was really flawed in some core sense. It was extremely disconcerting and stressful; really made me question myself and enter a full state of self-doubt. On the other hand, any new 'physical experiences'... whether it be go to a restaurant I wasn't really that keen on, or do something else more sensory-related-uncomfortable, wasn't disconcerting to my core self, in the same way. I didn't bristle and 'reject' in the same almost raw/protective sense.