In my contract-drafting course, we do a lot of short, in-class ambiguity exercises. At the end of one semester, a student came up to me and said, “I hate you.” (He was smiling.) I asked why; he responded, “Because after all the ambiguity exercises that we did, now I see ambiguities everywhere!”
I did a fist-pump and exclaimed, “Yes!!” I said that this was exactly what I had hoped: Now, in his law practice, the student would be more likely to spot ambiguities in the contracts that he drafted and reviewed.
To use as a reference in a conference paper, I collected the exercises I’ve been using — 80 of them, so far — in a single Web page.