Interesting, @cloudcore ! I need to work more on listening well with people I know well. You know how you can get into a sort of shorthand with people you interact with daily, and react like you know what they'll say? Especially in a fast-paced work environment with colleagues, where time is crucial. I need to be more patient.

Interestingly, I did an essay at uni on the "Communicative Presumption" - the assumption that someone is trying to communicate with you in a way you'll understand. In it I discussed that finishing each other's sentences is actually a bonding thing. (I do it with my brother all the time). It's a desire to show the person you connect with them and know them well. Of course, it can work the other way with people you don't know as well, and be a rude and aggressive thing. With most people I guess it's not a good thing, to try and finish the other person's sentence. But with my brother it's OK I reckon, as we've always done it. Maybe I should actually ask him one day if it's OK...hmmm.