Craig,
re your signature:
My wife says I can't do sarcasm. She says I just sound like an a$$hole.
I once ran across a site lauding The Big Bang Theory, and some comments were required :-)
I put on my best Sheldon Cooper attitude and worked hard to write as he would speak. I even stated, "as Sheldon might say...." The first response was "you don't need to be an a$$ when you write here." Sure enough, that's pretty much how he sounds!