Sometimes it´s necessary to say NO!

I had promised myself 4 solid hours pulling together the book that I am working on at this moment. No TV, no music, only the babbling sound of the Buddah water fountain and the sweet smell of incense...Sounds good? Well it was, until the telephone rang some twenty minutes later.It was a friend who "was on her way to visit me!" without invitation.Why can´t I learn to say no, in fact why can´t I scream and shake my hands in the air and shout NO! I could, but I never seem able to.

On arrival and seeing the paper everywhere she uttered"oh, are you writing?" "Yes" I said throught gritted teeth. As she pulled a bottle of red wine out of her bag she promised not to stay long. My heart sunk, and I am sorry to say, I never got to write, clear my thoughts, make notes or anything I had promised myself to do. Seet FA.

So Dr House, whats your opinion on why I can´t say No?.