One of my extremely strange hobbies is writing variations of the last verse of this poem.

The posts are lovely, dense and deep,

but I have promises to keep,

and lines (of code) to write before I sleep,

and lines (of code) to write before I sleep.

--

The snacks are lovely; tasty-sweet,

But I have promises to keep,

And hours to fast before I eat,

and hours to fast before I eat.

--

The chasm is lovely, dark and deep.

But you have promises to keep,

And years to live before you sleep!

And years to live before you sleep.