Script Idea:

Joe: Ok, so,... new... girl

new girl: Melissa

Joe: Yep, so new girl, this is your first time on the front counter... let's start with some emergency training... So what do we do in the instance of a robbery...?

New Girl: um... do exactly as they say... (nervous)

Joe: Good! You won't die too soon!

New Girl: gulp

Joe: No need to be nervous, I've worked here for ages and I've never seen a robbery!

someone bursts in with a gun

Robber: Everyone get the fuck on the ground!

Joe: Oh shit... I'll handle this!

Robber: Give me all the money from the register!

Joe: No! Fuck yourself!

Robber: shoots Joe in the face

Joe falls to the ground and new girl approaches him screaming and crying

Joe takes off fake bullet wound and gets up...

Joe: Okay do you see what I did wrong there? That's what happens when you don't do as they say. Thanks for the help garry, you can go back to work now.

Garry: No problem.