if a guy comes into a supermarket with his hands in his pockets and sunglasses, looking around his shoulder lots, keep an eye on him. if someones obliviously doing their weekly shop, maybe wait til you see them put something down their pants before asking them to leave based on their race or how they dress.
This how I get the supermarket chick to ask me what I've got in my pants??
Is it public exposure if they ask what's in your pants so you pull you dangle out?
But in relation to this thread the staff do have to make some big judgement calls, and some other muppets with "piercings blah blah" may have ruined that person's internal profiling.
I used to have long hair, wear my hood up and had piercings so I got questioned regularly, and didn't care. The way they humiliated her is what I see as unacceptable, profile away but wait for the right time and pull her aside, and when she queried it they should have answered it.
And Gonzala, yea they have the right to kick anyone off the premise but she had the right to not be humiliated for no reason and deserved answers.