The abandoned and now discredited practice of parents gathering children around a child known to have chicken pox and, among other methods to spread the infection, sharing lollipops. The theory was that chicken pox is less dangerous to children than adults, and should be encountered as early in life as possible. See also 70's.
And see who looks up. Sadly, I fell for this the first time. See also Pranks.
For example, Costly Mistake for the Orioles. (Perhaps they flew north rather than south for the winter.) Or Pirates Lose Another Arm to Injury. See also Sports.
Dude. Do us a solid. Add your own funny thing to do.
"A Tale of Two Cities is a novel written by Charles Dickens in which he details the events of two different cities."
...and telling him or her it's you from the future.