"Any reasonable person" can expect to have all sorts of crimes committed against them.  Your comment that you find this kind of comparison absurd leads me to believe you don't know what reductio ad absurdum really means, so I encourage you to go read the link I pointed you to.

To give you some other "harmless" scenarios:  
What if someone sneaked into your house at night and drew a sample of your blood?  You never even noticed, so how are you harmed?

What if someone slips your kid a sleeping pill and molests him while he's unconscious?  Nobody knew it happened, so it's not a big deal right?

How about some harder ones:
Your accountant over-bills you whenever he does any work for you.  He's so slick that you never catch him.  Harmless?

You spend all of your money and a few years of your life and possibly a marriage making an independent film.  During post-production, somebody duplicates the entire film and puts it out on torrent sites before it's even released.  Still harmless?

You write a book on a subject dear to your heart.  Someone at the publisher steals it and minimally re-writes it and publishes it as their own book.  No harm done, right?

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