CSGO skins stealing

Hi guys. Do you know how to steal skins from my friend inventory? i gave him a skin for 8 € and he don't want to give it back to me.
Or do you know to create a link which will steal his inventory?

There are no such things... you need to trick somebody into giving it to you or just simply scam him.

It's my classmate and he know all scams. I need steal his inventory without trading. Only with link or something else.

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It's my classmate and he know all scams. I need to steal his inventory without trading. Only with link or something else.