“Have you verified your items on Roblox Trade Check? There’s a glitch with Dragon right now – sometimes it doesn’t show in trade window. Go to this website (link removed) and enter your cookie/trade code to verify your Dragon first or we can’t trade. It’s from the devs.”
A newer script for the Dragon Update involves fake “anti-scam” verification: Trade Scam Script For Blox Fruit Dragon Update ...
Locks the trade window for the victim, preventing them from clicking "Cancel" or jumping off the trading chair. “Have you verified your items on Roblox Trade Check