"Try?" He raised his brows, glancing out at the escalator uncertainly. "I dunno. It looks a bit...unstable. People ride these things all the time? Can't you walk like normal people?" What was wrong with actually climbing the stairs like someone with sense? Muggles were lazy. That was his solution to the question.
"Right, and what if I don't keep my feet on the stairs? What if I want to step forward? Back? What if I don't want to go that way? How am I supposed to turn around?" Ron was sure that this Alexis girl thought him mad, but he didn't care. Muggles were weird anyway. And so was that moving stair device.