Afraid of hurting people

There are a good number of reasons for why it is that hard for people to say "NO" and they keep wasting their time for things that are of no use for them, for things other people ask them to do. Though, among the broad variety of those reasons there is one most important reason. The reason we are talking about is fear for hurting other people.
People can't say "NO" and save their time with that "NO" because they are afraid o hurting other people, they believe those people will get offended with their refusal and so – they are trapped in no-"NO" trap. And they will remain their suffering till the day they will realize the whole idea of what is going on. Do not be afraid of hurting other people.
Do not be afraid of hurting other people because they are nor afraid of hurting you, they are not afraid of taking your time away from you and they are not afraid of being too insolent towards you. The only thing they care about is their own interest. And it is impossible to hurt one who cares only about his or her own interests.
Don't be afraid of hurting those who are not afraid of hurting and using you. Even in case such a person will never talk to you again – there is nothing you will lose. There is nothing to lose. Those people who use you are not friends of you and so it is not a big deal to lose such people.