What kind of person is this who doesn't answer strange phone calls or return strange text messages?

Normal people, there are too many harassing calls now. If they ring too many times, they won't answer.

We can guess that people who don't answer the phone have several kinds of psychology.

1. Guess who the caller is and don't want to answer it.

I was harassed by this phone call before.

3. Don't answer if you don't hear it.

4. Only set the white list, that is, only the phones stored in the mobile phone can be dialed.