I wonder if Amber isn't in some facility for the mentally handicapped and the coffee shop job is some part of a patient rehab program.
You may be onto something there.
A kind of Potemkin village within the confines of a do-gooder asylum.
All the workers and all the customers are inmates.
Nurse Ratched and her sidekicks watch from behind two-way mirrors, operating electronic zappers attached to each lunatic.
Shortchange a customer? ZAP!
Spill some sugar? ZAP?
Piss in someone's coffee cup? ZAP! ZAP!
Graduates get preferred treatment at the Sally.