Just came up with a crazy idea and wonder if it would work? So basically there are restaurants where they have these wireless card terminls which they bring you to the table. What if I jam the wireless signal with a signal jammer and card payment wont work? I can "try to pay" with like 2 or 3 different cards from different banks and after like third attempt the waiter would think that there is a problem with the terminal or network. I can then politely ask "where is the next ATM" andbe really nice and say ill pull out cash and be there in 10 min and just never come back would it work? of course they might have a wired terminal, but im sure not every restaurant has wired terminals
