[Margaret Pilkington]

We can shop for 363 days of the year.......shops close on Christmas Day and Easter Day.
Two days a year when the shops close. You may not have a religion, but others who work in the shops may have a religious belief.
I am sure that most of the large stores have had their opening times over the Easter break well publicised. Surely it is not beyond your ability to make sure that any shopping you needed was done before they took a day off.

Don't you think that those who work in the supermarkets want to spend a little time with their families?

Anyway, it seems that you got yourself sorted by patronising a Spar shop(which is very likely to be run by someone who is not Christian).
Live and let live.