We should always be very careful, because the magnets will own adsorbed together, could pinch your fingers. There may be damaged due to collision magnet itself (or knocked knocked corner cracks) when magnets each other.
Easily magnetized magnet away from items such as floppy disks, credit cards, computer monitors, watches, cell phones, medical equipment and so on.
Magnets should stay away from the pacemaker. Larger sized magnet, should be added between each piece of plastic or cardboard shims to ensure that the magnet can easily be separated.
Magnets should be stored in a dry, heated environment.