What if you were riding on the train with your husband, or anybody really, sitting in one of the butt-to-butt two-seater benches. The window on the left and a metal arm rest on the right sandwich you both in place pretty squishy-like.
And what if somebody rolls up and asks if they could sit down between you.
"Excuse me, could you shove over a bit? I can get in there. I know I can get in there." They try to Vulcan mindtrick you into believing they can mash their whole self into the two-inch sliver of unoccupied space on the bench seat.
Maybe they'd like clench their hiney cheeks together in an effort to appear less horizontal. You'd be like, say what? and get all scowly-eyed and intractable. Or maybe you'd pull a New York and pretend you didn't hear anybody talking in hopes they just silently give up and go away.
I ruminated for an hour over this possible circumstance. I have to plan out my reaction just in case.