[I don't know the legal stuff here, but just in case, let's stipulate that this entire post is written from the point of view of a fictional character named Steve.]
I think Calvin Klein is bad for the world. I think that by making expensive clothes, they help make it easier for rich people to distinguish themselves from poor people, and make it easier for people who care about clothes to distinguish themselves from people who don't care about clothes. In a world without Calvin Klein, you'd be slightly less likely to have to wear annoying clothes to work.
Why I don't like Calvin Klein isn't the point, though. This is the point:
Assuming you think Calvin Klein is bad for the world, you not only morally can but morally should steal clothes from Calvin Klein.
The reason it's bad to steal music, and bad to steal toasters, and bad to steal food, is because paying people for toasters makes them make more toasters, and makes other people invent better toasters. You're helping to create an incentive for good stuff.
But if I go into Calvin Klein and pay for a tie, I'm giving them incentive to make more bad stuff. Which is bad. If I need a tie, or a fancy belt, I should steal it, so they don't make more ties and fancy belts.
I've talked this over with a bunch of people. A few agree with me. Most say something like "but stealing is wrong!!!!" which is the kind of thing I tend to dismiss, but my roommate Andrew helped me understand that it could mean something real. In order to exist, companies need heavy, healthy moral taboos against stealing. Otherwise you end up with Africa. So every time someone hears about shoplifting it makes them a little less likely to start a company/makes them more likely to do costly anti-theft stuff/makes the U.S. a little more like Africa.
Cool, I agree, that makes sense. But it only applies if/when you get caught.
So now we get into a side note: it turns out to be incredibly easy to shoplift without getting caught.
Over the last month and a half I've done a lot of shoplifting experiments. Mostly in Calvin Klein. Basically all you have to do is walk in, take stuff, and walk out, without looking obviously guilty. It turns out to be pretty tough to get caught - I had to actively try to look shifty-eyed to get any attention from the guards.
Shoplifting in big supermarket chains is actually even simpler. You can use them like buffets. In China the big supermarket chains have monopolies on clean bananas and mark them up huge. Solution: walk into supermarket. Eat banana. Leave supermarket.
(Side note: I wonder why all poor people don't do this. Is it because they're afraid of getting caught, or because they have moral scruples? I can afford to be kind of blase about eating a banana in a supermarket - so far no one's talked to me, but maybe they would if I looked dirtier. Also, given that I've been pretty privileged for the last ten years, I probably make certain assumptions about what bad shit wouldn't happen to me if I did get caught, the rule of law, a fair trial, presumption of innocence, that kind of thing, that your average poor person might not make, and sadly they're probably right in not making it.)
(Other side note: I think poor people not only can but should steal from supermarkets, because the money is worth so much more to them then it is to the supermarket.)
Anyway, bottom line, it's incredibly easy to steal without getting caught. (If you're worried about looking guilty, just pretend to text on your cell phone, which is what I told my roommate who wanted to try. No one will question anyone who is on their cell phone. It's like the one unbreakable rule of American society.) So you should all go out and steal your next suit. Or tell me why I'm wrong in the comments.