divebuddy - //Andy, All staff who work on check out have received the appropriate training (otherwise they wouldn't be able to do it, would they). Why would you train somebody to do something with no intention of actually making use of that acquired "skill".
This is just a case of weak management. Probably somebody bricking it because he is terrified of being accused of being a racist if he does what common sense says he should do. //
Neither you or I know, but I am willing to surmise, that at some time during this employee's pre-job interview and / or during her induction, the subject of selling alcohol was raised.
I think it unlikely that she pretended that selling alcohol would be OK, and then decided one day that it wasn't so we can reasonably assume that her faith constraints were considered, and she was employed on the basis that the firm would work around them. This is borne out by the management comments that the lady is not normally in a role where alcohol is sold.
So, she is put into a position where she is required to handle a bottle containing alcohol, and she refused, and the store handled the situation without making her feel she is an 'oxygen thief', or feeling it necessary to save its perceived reputation as a 'hard man' employer by dismissing her.
It is nothing to do with bending to the will of a minority, as you seem to be inferring.