How do they know you do not have enough cash? You must have put some cash down, but that would make no sense. Also, the .44 magnum is not ideal for robbing, you have to pull the hammer back, which would require both hands as it is a big gun. A more ideal firearm would be a Glock 17 gen 4 semi-auto firearm, it's small and lightweight requiring only one hand to pull back the slide.