Mother Cube Nursery Rhymes: Priority

There once was prez who said "Do it.
And by 'Do it' I mean 'Now.'"
So you've wasted your night, just screwed it:
But he forgot he wanted it - Ow!

That is what we mean by "Priority":
For others to set for you and me.
Don't ever take it personally:
They haven't thought it through, you see.