april fools' day.

april fools' day, sometimes called all fools' day, is one of the most light hearted days of the year. it's origins are uncertain. some see it as a celebration related to the turn of the seasons, while others believe it stems from the adoption of a new calendar. april fools' day is observed throughout the western world. practices include sending someone on a "fool's errand," looking for things that don't exist, playing pranks, and trying to get people to believe ridiculous things. taken from http://www.infoplease.com/spot/aprilfools1.html .
*******************************************************************
i am not a very good prankster myself, but i do remember a couple of things i used to do when i was in college. we used to tape money to the ground and go up to the roof in the building above the sidewalk and watch people try and pick up the money...hilarious. another thing we would do from that roof is call the pay phone across the street when someone would walk by it. we would let them know that we could see them by describing something they were wearing or the movements they were making. they couldn't see us from where we were on the roof....got them every time!!

check out google's april fools' joke...

Gmail AutopilotTM by CADIE
Email will never be a thing of the past, but actually reading and writing messages is about to be. Gmail Autopilot automatically manages your inbox better than you can, with zero effort from you.

Keep in touch Brand-new CADIE technology enables Autopilot to scan every one of your incoming messages and automatically send the perfect reply.

Manage relationships Impress everyone with your prompt and insightful responses to everything from urgent notes from your boss to cute messages from your significant other.

Match your style Autopilot calibrates for tone, typos and preferred punctuation. It's just like you, but automated.