Beijing park dispenses loo roll using facial recognition - BBC News

A park in Beijing has installed toilet paper dispensers with facial recognition to stop visitors from taking too much loo roll, media reports say. Machines at the Temple of Heaven park scan visitors' faces before dispensing a fixed length strip of paper. The tourist attraction is reportedly frequented by visitors who take large amounts of loo roll home. It has reignited debate over the lack of social graces among some Chinese. Park officials have installed six machines at its public bathrooms in a half-month trial, with staff on standby to explain the technology to visitors.