and if they do, you have no recourse just like with scrapers. with the candy example, you spend you time sitting near the candy bowl supervising. for servers, we have various anti-bot supervisors. however, some asshat with no scruples can still just walk right up to your bowl and empty the contents into their bag and then just walk away even with you sitting right there. Unless you're willing to commit violence, there's nothing stopping them. now you're the assailant and the asshat is the victim. you still loose.