I’m pretty sure they tell employees to give up the cash, keep smiling, and don’t shoot thieves.
If it was a store owner, I’d be sympathetic.
If an employee was threatened with a weapon, I’d be on his side.
Shooting someone who, basically, is disrespecting you or pissing you off is not going to end well.
Being sprayed with mace is not just disrespecting someone, it’s an assault.