Do Not Take My Stuff!

What right do people have to claim things that do not belong to them? Does it make it right to take those things away? People do not have any right to take things that do not belong to them. It is rude to take things away if people take is not theirs. It should not be allowed to take something that is not yours. I personally think that it should be a law and that people should be able to ask to be able to take something that is not theirs. I believe it does not matter how "powerful" somebody is, taking somebody's things without permission is wrong!