So now the Church had feasts for all those in heaven and all those in purgatory. What about those in the other place? It seems Irish Catholic peasants wondered about the unfortunate souls in hell. After all, if the souls in hell are left out when we celebrate those in heaven and purgatory, they might be unhappy enough to cause trouble. So it became customary to bang pots and pans on All Hallows Even to let the damned know they were not forgotten. Thus, in Ireland at least, all the dead came to be remembered–even if the clergy were not terribly sympathetic to Halloween and never allowed All Damned Day into the church calendar.
I may have to make a shirt that says “Day of the Damned” in Latin or something.