National chuck your grandma down the stairs day

This day lands on June 15 ,and it is a day where you get to chuck your grandma down a flight of stairs to your hearts content.

Person 1: Hey grandma... You know what day it is.
Grandma: No sweetie I don't know what day it is
Person 1: Follow me up these stairs, and stand at the top with me and don't move
Grandma: Okay
Person 1: <Chucks grandma>
that's national chuck your grandma down the stairs day