If my card was taken, which would be empty, I would go seek management and they would use the cameras to find the person instantly the only realistic end is the person gets caught with a blank card, gets banned and likely get police involved.
Or would you just stand there dumbfounded instead of dealing with it….? There’s no situation here where the thief gets ahead, they’ll be caught 100% of the time if you are smart enough to seek management….
This is a wonderfully fake situation that’s easily dealt with to get mad at though lmfao.