The Civils Principle of No Ex Post Facto Law

"I will choose to never forget and hold people's sins against them forever like the internet does," Dansiger says. "You noticed that lately? Lately?" he asks, before going on a tirade about his ex-teammate Simon Dansiger being fired by the Miami Dolphins for hitting a squirrel in 1983. The no ex post facto law thing was a way to prevent abuses when you had this weird moment in the 18th century where parliaments and kings kind of sort of coexisting. If you had somebody who was a problem and just needed to be dealt with, you could illegalize their annoying activity and then punish them after the fact.