[chickenpotpie]

IMO this is paranoid behavior and not healthy. Part of existing in society is having reasonable trust that just because someone can take advantage of you in a moment, doesn't mean they're going to. You're getting in an argument with a server because of your fear that a local hacker printed out a sticker, walked into your local restaurant, seamlessly put the sticker onto the table, didn't get caught, you just happened to sit at the exact table they picked, and whatever vulnerability they're trying to exploit is compatible with the exact device you have. Thats not going to happen.

Scan the QR code, dude.