Dogged Doggerel for Proper Caterwauling

Doggerel is difficult when required on demand
Words rarely seem to come out quite as planned

Tis easier by far when one has something to say
Or at least begins in the proper mood to play

Unshaped thoughts like fluffy clouds not yet prepared to break
Can attract the oddest words merely for rhyming's sake

Add lack of willpower or self-discipline to the mix
And the result can leave a would-be writer in quite a messy fix

Rhyme rhythm meter: none seem part of any plan
Just putting down what comes out as only nonsense can

And yet when seen in light of such a lengthy drought
One can only be grateful that something has come out

Or not