They are moaning that they are going to lose a fifth of their profits on one day, when O'Connell Street is closed to traffic for a commemoration of the 1913 Lock Out.
I see a certain poetic justice to that. Boo-hoo for the shopkeepers! Boo-hoo for the motorists! Boo-hoo for the deprived shoppers, not being able to shop in one street for one day-- if they insist on driving, that is.
Fumble in a greasy till, indeed.