An atheist complained to a friend,

"Christians have their special holidays, such as Christmas and Easter. Jews celebrate their holidays, such as Passover and Yom Kippur. Muslims have their holidays, such as The Holiday of Charity and The Commemoration of Abraham's Sacrifice. Every religion has its holidays. But we atheists," he said, "have no recognized national holidays. It's unfair discrimination, I say!"

His friend replied, "Well, why don't you celebrate April first?"