I decided to google what random day/holiday this is today and it is 3 different things. Those three are:
Hammock Day-- I can get into that one. My parents have an awesome hammock that I love to read in.
Parent's Day-- Go us!
Ratcatcher's Day---Which ties in with the legend of the Pied Piper...but basically it's thank a pest control dude day. So hats off to you Billy the Exterminator. :)