## Setup

class Address

  attr_accessor :id, :created_at, :line_one, :updated_at, :line_two, :tag

end

exclude = %w(id created_at updated_at tag)

a = Address
# Assign some attrs

b = Address
# Assign some attrs

## Problem

a.attributes.except(exclude) == b.attributes.except(exclude)

#  Because Except takes a splat, it's not smart enough to ... join, the array
# into a comma separated list of args?

def except(*vals)
  ..... something about a hash.reject ;)
end