Figurative, I think. The others don't seem to be in correct form.
Reduce waste of lunch/ pack a waste free lunch. Also you can conduct a waste audit.
Absolutely, especially if the harm was intentional (on purpose). If you harm someone, you have to think about and live with that incident for the rest of your life. Ill will and feelings eat away at a person. You start to lose sleep; your health declines in many ways; overall, you just feel terrible. This is all multiplied even more when you intentional harm someone. Often times, you relive the incident over and over again. The harm being done to you, now, can be far worse than when you placed harm on someone else.
The national anthem of the United States
