Interdimensional Traveler

You first go to a gun store to buy a gun, then you go to the bank next door (WHO CAME UP WITH THAT IDEA?! IT'S GREAT FOR YOU BUT BAD FOR THE BANK!) and demand all the cash from the teller.

Suddenly, you feel a gun pressed against your head. Apparently, in this dimension, banks have perfected an anti-robbery system where you are scanned coming in the door, and an armed robot comes in behind you if you are carrying any kind of firearm.

Okay, so this dimension is a little more high-tech than the one you came from...maybe that's why Firefly was on the air more than one season here...

As you are dragged out of the bank by robotic police, people are laughing at you. They are surprised that anyone was stupid enough to just walk into a bank with a gun and try to rob it the old fashioned way...

You make national headlines with your act that seems so stupid to the people of this world.

ENJOY PRISON!
End Of Story