Well metal detectors can help to save a life in the event that someone has a weapon or is armed, the dectector can sense the metal in a gurn, for example, which can sve lives because if that person meant harm on others, the gun can be detected before somethinf terrible happens. Hope this helps!
Answer:
It doesn't make the personality, but it can certainly change it.
Explanation:
Example: A poor man could be the sweetest person you know. Then, he wins the lottery and suddenly turns him from sweet to snobby. Over time, he can resort to going back to a kind personality.