"Fifty Shades of Grey" star Jamie Dornan is quickly learning that there are some things better kept to yourself during interviews. Like the fact that while prepping for his role as a creepy serial killer in BBC series "The Fall," he got some hands-on experience in stalking. "The first [season], I did a couple of things to try and get inside [my character's head]," he tells the Los Angeles Times. "I did ... can I get arrested for this? Hold on...This is a really bad reveal — I like, followed a woman off the train one day to see what it felt like to pursue someone like that. I really kept my distance and I was aware, it was kind of half-hearted, 'cause I was going like, 'If she turns around, is she going to notice?' She got off a few stops earlier than I was planning so I was like, 'Alright, I'll have to commit to this here.'"

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He then proceeded to follow her for several blocks, which is certainly not creepy at all, right? "It felt kind of, like, exciting in a really, like, sort of dirty way and I'm sort of not proud of myself. But I do honestly think I learned something from it, you know, just 'cause I obviously never done anything like that in my life, so it was intriguing and interesting to sort of enter that process of like, 'What are you following her for?' and 'What are you trying to find out?'"

So what do we say? Would you mind terribly if you turned around to discover Jamie Dornan was following you home? I mean, for purely professional reasons?

Follow Ned Ehrbar on Twitter: @nedrick