Alice is up to something that would get her punished if she'd get caught. However, she's not planning to get away with it. On the contrary, getting punished is at least part of the point. Maybe she consider the punishment to be a form of Unishment, or maybe getting caught is a part of some bigger scheme. The former is often related to Happiness in Slavery or Casual Kink, while the later is often related to I Surrender, Suckers or Xanatos Gambit. Note that the difference is in the motivation, not in the act itself. Examples of Mischief for Punishment include: