Scenario: As you walk into an empty class, you see a bag on the floor under a desk. what you could do next.

1. You could pick it up and give it to the teacher, telling him/her that someone probably forgot their lunch.

2. In worst case scenario, it could be a bomb, so alert the teacher if you have a bad feeling that the bag is dangerous.

3. If the bag is empty, maybe recycle it?; )

Pick up the bag, and bring it to the main office. that way the owner could pick it up later.

OR

Leave the bag alone and wait for the owner to pick it up