National Step In A Pubble and Splash Your Friend Day

Yep, that is right.  Today is the National Step in a Puddle and Splash Your friend Day.

Here is what I found on Google:

Step in a Puddle and Splash Your Friend Day is celebrated on January 11th of each year. The staff at National Whatever Day were unable to discover the origin of Step in a Puddle and Splash Your Friend Day, however we believe it was established as a way to have a little fun with some friends on a rainy day.

The key word here is  friend.  I wouldn't advise doing it to someone you don't know and but want to get to know.