It is funny how many people are now scared to enter their credit card details online, but are still ok with letting someone in a shop or bar take their card away out of sight. Of course you should be very careful when shopping both online and offline with your credit card as there are always people who will try to get your card and use it fraudulently. Never ever give a card to anyone else when they want to take the card away out of your view in a shop. It is easy to clone it. In security terms if you have someone in your life that you suspect may be stealing or trying to get your credit card details or is generally under suspicion run a background check or a reverse cell phone lookup against them using the internet.