I'd say probably when the person you are contacting prefers communicating via call or text or another form of messaging. For almost anything professional or business related, it would be appropriate and acceptable to email.
Explanation:
1. No, I think you have to meet person properly to trust him/her.
2.Well, in most cases I gave them a chance but later it turned out that my thoughts on the first glance were true.(in most cases bad ).
3. I'm kind of person that cares about the ones who don't care about me.Even if I know they don't deserve it, we are all humans after all, and you have to know that you mustn't be like them. So, I think it is pretty normal to care about them, but not too much if they are wrong. If it is for justice, then you should care, but if they are the ones who made a problem for themselves then you shouldn't care.
4.Well, yes. Who didn't? We all know that this world isn't candies and unicorns, it sometimes get hard and sometimes so easy. You will have good and bad people in your life. You can protect yourself from that negativity and being hurt only if you don't trust everyone. Don't be naive, not everybody deserves your trust and nerves...
5. I hope nobody will come to this situation, but if it ever happen/happened you are usually somehow alone. Try to be positive, even if you can't stay positive and you get to the lowest point you have to respect and know the worth of life that God gave to you. Not everybody gets this opportunity. I know life isn't easy, there will be an easy part of your way to success and happiness and there will be the hard one. Only thing that you have to know is that nothing is worth enough to hurt you.
I need the quotes to answer your question
