Fun fact, when running credit or debit cards you can actually get the available balance on them. I've made the mistake of going to the gas station when my check

Fun fact, when running credit or debit cards you can actually get the available balance on them. I've made the mistake of going to the gas station when my checking account only had a couple of dollars in it, ran the card at the pump and it let me put in exactly enough gas to 0 out my account and no more.