Retail staff being filmed by members of the public without their knowledge or consent is an "increasing problem", a shop workers' union has said. It comes after a sales assistant told the BBC he had appeared in a video uploaded to TikTok and YouTube by former TV presenter Michael Barrymore without being asked for his permission. Barrymore often films videos, including trips to the shops and interactions with the public, via a small built-in camera on his smart glasses, and uploads the videos to