Never underestimate the power of language. Yes, we know it's a pre-recorded message, but we also know a human wrote those words. I'd wager that a self-checkout

Never underestimate the power of language. Yes, we know it's a pre-recorded message, but we also know a human wrote those words. I'd wager that a self-checkout that barked out commands without ever saying please would sound rude, robotic and harsh to users.