The Sunday prior to Easter. If you live in FL-- you get up real early and hack down as many
palm trees as possible, slice them up, and give them to people at church. When mass starts, you wave them
up and down, then play with them the rest of the time.
Mass is also really long because everyone in
the church re-enacts Christ's passion. It's fun and all, especially when you yell "Crucify him" at the priest.