Oops, it doesn't look like 'security threat and seemingly intends to stay that way until his last day' is a national day..

Other days

Frozen Yogurt Day

Appreciate Yaself A Lil Extra Day

Lisp Day

Bow Tie Day

Raise Awerness Of Zeus Day

Prescription Drug Take Back Day

Promposal Day

Unicorn Day

Get Funky Day

Nail Polish Day