https://phys.org/news/2018-11-music-explicit-anti-piracy-deterrent.html

The research, borne out of dissertation work by UNLV psychology instructor Joanne Ullman, tested 220 college undergraduates' reactions to more than 70 symbols, action words, and warning phrases.

"For some individuals, privacy may be just as important as a pecuniary consequence," researchers wrote in their paper, which was published last month during the Human Factors and Ergonomics Society 2018 Annual Meeting. "Of course, the combination of both would heighten the potential consequence."