Here is American Journal talking about a TikTok video that shows a man supposedly pulling a prank on people entering an establishment. He stands their and tells people to hold out their arms a if he is using a metal detector and they act as obedient sheep and let him roll a lint roller on them. Even though it only shows three people coming in, and could be staged, I would not doubt that this is genuine behavior of these people, especially with the mentality of mask wearers.