So I was trading with this guy who wanted the rhino prime systems and I asked for 25 platinum for it. He agreed and I invited him. When I got into the trade booth and put down the systems, he put down 5 platinum. After asking why he did that, he said "it will only let me put 5 for some reason". Not being stupid, I called bullsht. And I was right, he tried to scam me. I then made him pay 30 instead of 25 for trying to scam me, and he was very salty but the trade worked out.