Another example:
You sell me an apple for 20p, I give you the money, you then refuse to give me the apple. You leave it on the table and walk off, so I take the apple. I'm not stealing it, I'm simply taking what I paid for and what I am entitled too.
Also you should check my steam profile, go on, it's in my signature., give it a click. Didn't know pirates paid for so many games, maybe you shouldn't assume people pirate, pretty ridiculous.
Except he can still sell his apple again and again and again, you just cloned it.