It drives people crazy trying to learn to speak English.

Here are some reasons why:
The bandage was wound around the wound.

The farm was used to produce produce.

The garbage dump was so full that it had to refuse more refuse.

He could lead if he would get the lead out.

The soldier decided to desert from the army in the desert.

When shot at, the dove dove into the bushes.

I did not object to being the object of her affection.

The insurance was invalid for the invalid.

They were too close to the door to close it.

The buck does funny things when the does are present.

The wind was too strong to wind the sail.

After a number of injections my jaw got number.

Upon seeing the tear in the painting I shed a tear.

I had to subject the subject to a series of tests.

English was invented by people, not computers, and it reflects the creativity of the human race, which (of course) is not a race at all. That’s why when the stars are out they’re visible, but when the lights are out they’re invisible.

P.S. Why doesn’t “Buick” rhyme with “quick”?

“I must study politics and war

that my sons may have liberty

to study mathematics and philosophy.”

–President John Adams