Oops, it doesn't look like 'security on the day' is a national day..

Other days

slime

Slime Day
boy friend

Boy Friend Day
tell a fairytale

Tell A Fairytale Day
ruby

Ruby Day
self appreciation

Self Appreciation Day
tulip

Tulip Day
self care

Self Care Day
nail polish

Nail Polish Day
lost sock memorial

Lost Sock Memorial Day
lisp

Lisp Day