Sorry, I didn't think I needed to outright state that I'm not obstructing others. I assumed, it would seem incorrectly, that that went without saying!
If you'd like you can assume I also block people at the baggage claim and take my time when I'm at the front of the passport control queue with people behind me. I don't, obviously, but if you're going to start off assuming shiftiness why stop at the basics! Take it the whole way! Presume I'm incapable of using a luggage trolley too! Why not!