We hand out a blank note card and pen to each participant. We then tell the group that each one of them has won an all-expense paid vacation. Ask then to write a list of all the things they will be packing. Tell them they have one hour before the limousine is picking them up and taking them to the airport.
Next we give then an envelope with a card inside that reads, "Congratulations, you have a vacation to Antartica!"
Next comes the fun part where we talk about where they thought the vacation would be. Most of them thought it would be Hawaii. We have a fun discussion about assumptions, getting correct information, and making appropriate preparations.
Lastly, we ask if anyone has an example of another time they might have prepared for one thing but realized that they needed something different after they received more information.