Foul-mouthed at the counter

I was at Duane Reade the other day at 47th and 6th Ave. The check-out line was long (about 8 people waiting for the single clerk at the front registers). When the clerk looked up to see the line, she said "shit" very loud in a nasty sort of tone. Then she picked up the phone and paged someone. Several minutes later, a couple of employees came up from the lower level. The clerk yelled at them, "what the fuck were you both doing downstairs together? Look at this fucking line."

Noted issues:
1. An adequate number of employees should be stationed at the front registers to handle customer traffic.
2. Employees should never swear at coworkers in front of a line of customers, some of whom may be children.
3. The store is generally quite dingy and dilapidated.