C134 The Son of the King of Gambler
While casinos on Wamont Island are legitimate businesses, the activities within them haven't always been above board. If Eustace were truly snatched by casino staff, there'd be no telling what they might do to him. And with Dagny and the others still in the VIP room, they'd be left unprotected should anything happen to Eustace.
So, Eustace caused a scene on purpose