That’s why we can’t have nice things
Display items are for display only. That’s why they’re called display items. You can’t touch them, lift them, try them out, but that’s it. If you want the product, buy a packaged one and take it home to break. Don’t go stealing keys off of display keyboards just for the fun of it.
Some people might argue that large corporations don’t lose a dime when their products get damaged. That might be true, but that doesn’t mean you should behave like animals and tear them to shreds for entertainment. It’s like people plan their days around causing as much mayhem as possible.