If it's still on, im gonna tel ya a joke what I with my colleague's did on my work for 1 colleague. His birthday is on April 1 (he turned this years 40), he's responsible for fire protection. And I made a fake fire with birthday cake and told him that there is a fire inside a building and told the place where is the fire, so when he ran into that place and came back he had tears of joy
and told us that was a best april 1'st prank ever he got on his birthday.