DFW just keeps on giving. One of his former students has posted a ten-question worksheet he wrote titled:

IF NO ONE HAS YET TAUGHT YOU HOW TO AVOID OR REPAIR CLAUSES LIKE THE FOLLOWING, YOU SHOULD, IN MY OPINION, THINK SERIOUSLY ABOUT SUING SOMEBODY, PERHAPS AS CO-PLAINTIFF WITH WHOEVER’S PAID YOUR TUITION

For instance:

4. I only spent six weeks in Napa.

And the answers. [via kottke]