Oops, it doesn't look like 'start an argument day' is a national day..

Other days

china

China Day

chocolate milkshake

Chocolate Milkshake Day

ponytail

Ponytail Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

hiv awareness

Hiv Awareness Day

offer

Offer Day

nail polish

Nail Polish Day

bounce

Bounce Day

Me Day

boyfriend

Boyfriend Day