But, hey, we’re time travelers. So we can just fire up the flux capacitors and hop back a day!
The Volokh Conspiracy – Today is “Pretend to be a Time Traveler Day.” has some excellent suggestions for observing this special day. My favorite:
“Walk up to random people and say “WHAT YEAR IS THIS?” and when they tell you, get quiet and then say “Then there’s still time!” and run off.”