A rampaging Audiofile might destroy your collection of the Best of the Sixties. Further, if you intend to bait Audiofiles in their home, keep your back to a door. That way, if boordom causes you to lose conciousness, you might fall out of the range of the monologue, or even make a stumbling escape. Use a water soluble marker, unless you don't like the disk. Radial lines have to be really thick and frequent.
Circumferential lines take the system out much faster.
If you carefully add radial lines in incremental steps, you will start to hear the system fill in missing samples with an estimate, and then eventually fail to track. Then palm their disk, preferably one of the gold plate flavor, sub one of your old junkers, and use a hand-held hole punch on the disk. It will fracture, and your audio fanatic passes out, or assaults you. Explain Shannon's Sampling Theorm. Especially point out that exact reproduction requires infinite resolution of the sample, and you have only 16 bits.