Why are families so annoying???

How is it that your family seems to know how to push all of your buttons?  I used to enjoy talking on the phone until my Dad ruined it for me.  Now when my phone rings it causes my blood pressure to go through the roof.  I know this seems a little over-dramatic, but let me explain.  My Dad has been retired for at least 10 years now.  He also lives in a tiny town, and hates travelling.  So it is fair to say that he is pretty bored a lot of the time.  So, he likes to call me.  But he won't ever leave a message.  He will just call, and not leave a message.  Then he will call again, and again, and again.  Clearly he has forgotten the concept of having a job.  The fact that I am unable to have a leisurly chat about the weather, the neighbors, the guy who's dog is shitting in his yard...etc, is beyond him.  Okay so here is how it typically goes.  My Dad will decide he has something that I urgently need to know.  He will start calling me.  My phone on my desk starts vibrating.  I look at it to see who is calling, and see that it is my dad.  I am working, so trying to use my time wisely (which from earlier blogs you can see is already something that I struggle with) I decide it's not a great time, and I will call him back after work.  He starts repeatedly calling me.  I know, it sounds annoying right?????well....I am just getting started.  So the amount of time between each call starts to decrease, and then, in an attempt to "trick" me, he will have my 10 year old sister start to call me from her cell phone.  So now I am recieving multiple calls from my dad, and my younger sister.  As if this is not enough to make anyone throw thier cell phone out of the nearest window, he will then call my fiance, resulting in me recieving an innocent text message from my fiance saying something to the effect of : "Can you please call your Dad, he is having a hard time getting a hold of you".  Which naturally causes me to flip out and send a ranting text message back, I will kill the messenger.  Next I will get a text message from my mom, with a similar message.  My parents are divorced.  Somewhere along the line, he was able to get find my work number, so now in addition to all of this, he also calls my office repeatedly, and ask co-workers to relay a message for me to call him.  What might you ask could be so important that it would warrant all of these phone calls.  Today....it was to tell me that he walked to the post office and mailed my brother a letter.  I wish I was joking....but I'm not.