In trades as we know when you add a certain item to the table, the window pops up and it says that item is being added, and you also need to click "OK". There is a scam in trades where guy distracts you from the table make you look away or something. While you are distracted he decreases the amount of trochus and covers it with another item so it's not noticeable, and that's how people get scammed but, if admins add the pop-up window when somebody decreases the number of shells on the table, a lot of people would not be scammed. I think that the pop-up window would really benefit to trading.