If a cut is deep.
Many people believe that when you get cut it’s necessary to urgently remove the shard and clear the wound. It’s true. Yet if the wound is deep, you should never remove the object or shard.
It’s just like that children’s trick with water and a plastic bag. Having damaged large vessels, the shard blocks them. But as soon as you remove the object, the wound will start bleeding. Therefore, sometimes it’s better not to touch the place of injury at all until the ambulance arrives.
so I have a phone, but I'm going to explode it
( and maybe I die, doing it )
instead of calling for help !