Genius

One day I'm a genius;
The next I'm dumb as dirt.
If you are in agreement, well,
My feelings won't be hurt.

The scope of my intelligence
And which way I will skew
Has nothing whatsoever
To connect with my IQ.

The reason's very simple,
For I filled in every square
Of Friday's crossword puzzle - 
Bam! The answers were right there.

But today's a different story
As the empty boxes mock;
And nothing's in my brain except
The ticking of the clock.

At least again tomorrow
In the Sunday puzzle's sprawl,
I will have the chance to prove
I am a genius after all.