A colleague (not direct colleague) was fined because he, while executing his normal responsibilities, accidentally broke a German custom rule. He's not German, nor located in Germany. German custom fined him at his private residence. He performed this work on behalf of the company. German customs didn't care; figured out where he currently lives and sent the fine to him personally (his name is on it). So he's basically liable according to German customs.

If you do business with EU then you have to follow certain laws.