Those days do exist, eg. Plumber's Day is April 25th. They are taken about as seriously as Programmer's Day in most of the world (ie. not much, most people hav

Those days do exist, eg. Plumber's Day is April 25th. They are taken about as seriously as Programmer's Day in most of the world (ie. not much, most people have no idea they exist, even people in that profession).