I can tell...

I can tell when I'm not wanted,
I can tell when you don't want me there,
I can tell when I'm not appreciated,
I can tell you don't really care,
I can tell I'm just a bother,
Not the one who makes you all laugh,
I can tell you can live without me,
I'm smart enough to do the math,
I can tell you'd be better off without me,
And I can tell you don't really wanna know,
So why don't I take all this stuff I can tell,
And do you all a favor and just go.