A Missing Scrap

Exchange of Views Typical of Ms. Professor Fringemon:

Ms. Professor Fringemon states: "I can't write you a recommendation."

I ask: "Why not?"

Ms. Professor Fringemon says: "I can't trust your work."

I ask: "Why not?"

Ms. Professor Fringemon explains: "Among the thousands of paper scraps with writing on them, you missed one. Luckily, the same writing was on another scrap, which you didn't miss, so I was able to access the material myself."