'Killer robots' and AI's 'dirty little secret'

It was a busy weekend at the local supermarket, and lines were forming at checkout. Around a half-dozen people lined up at the automated checkout registers when I noticed there was no line at the checkout where a human cashier was waiting. When a customer approached the checkout area, they scanned the options and decided to wait in line for the automated checkout instead of walking right up to the cashier with no wait. I could not resist asking the customer why they chose to wait for a machine instead of getting immediate service from a human. Their response carries an important message for the future of artificial intelligence (AI) and the robots it enables: "I don't want them (the human cashier) looking at everything that I'm buying, and I don't care for their opinions of what I'm getting."