but ullah would not shut up with his running joke about the good-looking kasab ditching the mission when , the moment he stepped foot in mumbai , he would undoubtedly be offered a bollywood screen test ( kasab was the only member of the squad who spoke anything better than passable hindi anyway , so the joke never really wore out , and kasab himself winced because , as with every jesters barb , there was a kernel of truth to ullahs joke ) .