I must admit the sidling away is a bit odd. Although admittedly there is no way to be subtle when wearing a hot pink coat (I must confess I was mentally imagining the outfit from that episode when I saw your post) but still.

My oddest one was sitting knitting on a half-empty train when a bloke sat down next to me and gradually took up more and more space until I ended up turning round in my seat so my back was to the window, just so I didn't poke him in the arm every stitch. And then me preceded to sigh pointedly and huffily at me every time I started a new row. Thankfully he got off at the next stop and I wasn't forced to employ sarcasm regarding the 'fullness' of the carriage but the whole situation was bizarre.