Calvin Act

A law dat states dat you can sneak off with a fellow human's toy animals and hold them for ransom.

Da Calvin Act may permit ransom-seeking absconding with a stuffed bunny, but da oppositely-worded --- i.e., extortion-FORBIDDING --- Hobbs Act (or in this case, maybe it should be spelled, "Hobbes") is da one dat Susie violated by absconding with said stuffed tiger. Dunno if a court would deal particularly harshly with Susie for her breaking said latter law, however, since her actions were merely done in an effort to get her own plaything --- "Mr. Bun" --- back from da former law's greedy-opportunist creator.