Railway workers in Japan are facing enforced "smile scans" - something their bosses believe that, if done every morning, can boost customer services.
According to the Mainichi Daily News, more than 500 staff at Keihin Electric Express Railway are subjected to daily face scans by "smile police" bosses, reports the Telegraph.
The "smile scan" software, developed by the Japanese company Omron, produces a sweeping analysis of a smile based on facial characteristics, from lip curves and eye movements to wrinkles.
For those with a below-par grin, one of an array of smile-boosting messages will pop up on the computer screen ranging from "you still look too serious" to "lift up your mouth corners".
A growing number of service industries are reportedly using the new Omron Smile Scan system for "smile training" among its staff.
Workers at Keihin Electric Express Railway receive a print out of their daily smiles, which they are expected to keep with them throughout the day to inspire them to smile at all times.