Those pesky thieves....
If you have thieves following you and you don't want them around anymore (or you just feel like messin' with them) you can make them jump in the water.
Go to swimable water with a post in it. Only you can swim. Once you jump to the post, the thieves will try to follow. They can't grab the post because you're on it. They die. Woo. Cheap thrills.
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