I worked for that guy twice. The first time Batman caught me he looked at my uniform with so much pity that he didn't even punched me, he just tied me up and went to chase the boss, who was busy announcing he was going to fire his Mustard Gas gun at some cops.
Turns out his gun was filled with just the air that collects inside of mustard containers and it only made your eyes and nose itch a bit, but Batman only found out after he punched the boss so hard that he actually cried.
The second time, the boss wanted to steal a truck delivering BellyBurger's daily earnings to the bank, and things were running actually great: he fired his MayoMachinegun at the truck's tires to make it lose control and crash against a barrier, then we fired our PicklePellets against the guards and the boss finished them off with his Mustard Muskeet, but then Robin (yes, only him) dropped out from the sky and kicked the boss in the head so hard that the boss cried again. I tried to escape, but suddenly a steel-like hand grabbed my neck and for a moment I saw Batman's fist about to hit me, but then the guy recognized me and with another expression full of pity he just asked me to go away, and suggested me to apply to some jobs at Wayne Enterprises, because he understood that a thug had to be really, really desperate to work for the Condiment King.
So yeah, I worked for a crminal and I survived two encounters against Batman, so I could say I'm a seasoned henchman.