Ominous Telephone - Observation

I have been wondering lately...  Why is an ominous telephone scary?

Picture the start of a play...  The lights come up, and all there is onstage is a telephone.  Just sitting there, not ringing - Heck! Maybe it's not even plugged in!  But regardless, that audience will sit there for minutes wondering "Is someone is going to call that phone? Is it going to ring?"  They will wonder WHO will call that phone?  If it will be a man or a women?  If it will be good news?  Or bad news?

I have recently been thinking about this more and more because I can no longer afford caller ID, and every time I get a phone call I wonder those exact things.  If I miss a phone call, all I am thinking for hours is "Who might have called?  Why were they calling?  Did I miss an important call? GOD DAMMIT I SHOULD HAVE PAID THE EXTRA FIVE BUCKS FOR VOICEMAIL!"

I think it has something to do with the fact that when a phone rings, and you don't know who it is, that opens a world of possibilities.  These days, everyone and there dog has a cellphone so almost ANYONE could be calling you.  One phone-call can change your life, maybe for the better and maybe not.  It might be the president of the world, phoning to tell you that you are heir to the throne or it could your parents calling to tell you the bad news about your family pet, and this becomes so apparent when people are faced with the dreaded ominous phone.  

Just an observation.

E2S7BVY2S36U