Edukashun

Apropos of the limits of spell-checking sans context, this old ditty comes to mind:

I have a spelling checker
It came with my PC
It indicates four my revue
Mistakes I dew not sea
I ran this poem threw it
I'm sure your please to no
Its letter perfect in it's weigh
My checker tolled me sew.

Which leads on to another OD on the quirkiness of English words even when correctly in-context and spelt (or is that spelled):

We polish the Polish furniture.
A farm can produce produce.
The dump was so full it had to refuse refuse.
The soldier decided to desert in the desert.
The present is a good time to present the present.
The dove dove into the bushes.
I did not object to the object.
The insurance for the invalid was invalid.
The bandage was wound around the wound.
There was a row among the oarsmen about how to row.
They were too close to the door to close it.
The buck does funny things when the does are present.
They sent a sewer down to stitch the tear in the sewer line.
To help with planting, the farmer taught his sow to sow.
At the Army base, a bass was painted on the head of a bass drum.
The wind was too strong to wind the sail.
After a number of Novocain injections, my jaw got number.
I shed a tear when I saw the tear in my clothes.
I had to subject the subject to a series of tests.
How can I intimate this to my most intimate friend?
I spent last evening evening out a pile of dirt.
He could lead if he would get the lead out.