What is the ethical issue in all of these examples? how to manage it and what's the law says about ethic?

1- Several young men and women are stealing items from an open house you are attending. You do not know the hosts very well but you most of those who are stealing.

2- A waitress is being hassled by her supervisor who is using verbal sexual innuendo at the restaurant where you are trying to enjoy your meal and you are a regular customer, but you don’t know the waitress because she is new.

3- You observe a man accidently dropping an expensive bottle of wine in a liquor store when the manager is not looking. The man turns to those around him and denies responsibility; he even tries to blame a Latino maintenance employee who is cleaning up the store.

4- A transgender woman named Amelia works as a server at a restaurant and proceeds to inform a regular customer that she used to be a man named Bill. The customer begins to harass Amelia.

5- A good friend of yours tell you he is planning to omit certain important facts from his resume before he applies for the same job you are applying for. He says “it’s not important that they know I just lived off my parents for two years after college. Hey, I needed a break.”

6- At your place of employment, a customer paid too much for an order, but your boss told you not to call it to his attention. What you would do if you observe of these?