That would be annoying, but yeah the only thing I can think of is maybe try and be more assertive....but that is much easier said than done. But I think lots of people with aspergers have trouble with assertiveness and others seem to take advantage of that sometimes. I've certainly had issues with that myself.

But yeah I either try to stand my ground and stick to it or my other solution is avoiding people who do that. Another issue I have is when i am trying to explain something to someone and they interrupt to go on their own way with the conversation and even accuse me of interrupting when they never let me finish what I was saying in the first place.