Leftovers: A waste is a terrible thing to mind.
Office leftovers, esp home made, I love those. That's accepting other food cultures and trying something new that you may never get in a restaurant.
On the flip side, I eat too much of them, because I may not get more the next day. Weight gain, which means workout more, which creates hunger, feeding a never ending cycle.
Also, I don't appreciate people who turn their noses up at leftovers, esp vocally or making faces. There are some in my family. I've told them that if they don't like it, they should keep it to themselves, don't ruin the excitement of others, especially mine. Hangry me is not a nice guy.