.......Having listened to a couple or three tales of squished up Cattle-Class rides, albeit on US internals, I'm not sure it would make much difference in a rapid evacuation scenario if one or two cabin staff were gently trollied anyway. Disregarding the routine wind-up shock-horror witterings in the desperate Tabloids, and self needing to suffer long haul airline travel regularly on a tight personal budget squished into a tight personal space, I'll stick with BA. Once airborne everything always seems predictably calm, organised and disciplined. No over-long or copy-cat comedy P.A.s, no atmosphere of self empowered cabin police, and no hurry to whack off the lights and retreat to the galleys just because it's dark. Strictly a guess, but if a person has concerns about leaving in a hurry, surely best merely to choose an aisle seat, and know well your route to the nearest exit. Naturally, bearing in mind the needs of others, so without retrieving your shopping and random luggage of course.....Only ever did it once, and they allowed us back on later once the smoke had cleared to get our shoes.