This man is so stupid that there are several ways: go to the bank to report the loss; Contact the surface of the magnetic stripe with a magnet or related hard objects; If all the above methods fail, tell him that the damaged card bank is recovering it, but it is not recommended to use the above methods, because once used, you have to pay the cost of production and replacement yourself, and the cost of credit cards is higher than that of ordinary bank cards. Such people had better stay at a respectful distance from others.