When someone finds a lost object, they can keep it without worrying about the person who lost it.
A person has the option to ignore the lost object,
to leave it exactly where it was found, and to just move on.
Maybe the object’s owner will come back to look for it.
If it is an object that is possible to return to its owner,
you should take the object and try to return it to its owner.
What is the responsibility of one who finds a lost object in the street?
should you return it? Keep it?
Ignore it?