Which is why you have mutiple cards. One you use for automatic payments, and another card you use for gas, eating out, etc.
I also have a 3rd card that I use at places I don't completely trust (small web sites, etc)
And then you run the risk of having a card compromised and not realizing it until days or weeks later which makes it that much harder to clean up. You just need to get into a habit of checking your accounts every couple of weeks for suspicious activity even if you haven't used the card.