When should you not worry about others?
you should never concern yourself with what others think OF you, it's none of your business. you should ALWAYS show concern for your fellow man, unless it affects your own well-being.
When the zombies attack and they are chasing after you.
When you give them a call and see if everything's ok.
well , i think that you should consister about them since they are human but only if they are involed in any way
You shouldn't worry about others unless they really look like they need someone