I just happened across the latest post in a series about recursive punctuation over at Language Log, which features the gem:

“ ‘ “ ‘ “ ‘Why?’ I repeated, ” I repeated, ’ I repeated, ” I repeated, ’ I repeated, ” I repeat.

This reminded me of some of my favorite sentences from childhood, which feature word repition. My two favorite:

In a test, Mary, where John had had had had, had had had. Had had had been correct.

The problem with the sign was that there should have been more space between Johnson and and and and and Johnson.

Anyone got some more examples for me?