Here's something else to file under "the more things change":
On Seeing Some Tourists of the Lakes Pass by Reading; a Practice Very Common
What waste in the labour of Chariot and Steed!
For this came ye hither? is this your delight?
There are twenty-four letters, and those ye can read;
But Nature's ten thousand are Blanks in your sight.
Then throw by your Books, and the study begin;
Or sleep, and be blameless, and wake at Your Inn!
-- William Wordsworth
Very elegant and witty, and pointed, but I'll probably just continue snarling "Watch where you're going" to those clueless idiots who walk down the sidewalk staring at their stupid toys, assuming everyone else will leap out of their way. If it's so awful to be where you are, maybe you should think about why it's so awful, and what you're doing there.
The poem is on page 432 of the Penguin Classics edition of The Poems of William Wordsworth, Volume 1.