Just because...

Just because you have my cell phone number does not mean you can call me at your leisure.

 Just because you sent me an instant message does not mean I am instantly available to you.

 Just because I opened your email to check its immediate importance does not justify an immediate response.

 I find it the height of rudeness when a conversation I am having with someone is interrupted by a "ding", which steals their attention.

 I never answer a call whilst I'm speaking to anyone, regardless of how trivial the conversation.

I love that I can get an email, read it, reply accordingly in my own time. 

Are you going to be offended when I read your email on Friday and respond on Tuesday?

When did electronic communication become more urgent than real talking and listening? 

It's definitely not as important.

The world has existed for thousands of years with out the " modern messaging..

HUH...