[RTFM](http://api.rubyonrails.org/classes/ActiveRecord/Base.html#method-c-new)
```ruby
# Via roles
User.new({ :first_name => 'Jamie', :is_admin => true }, :as => :admin)
# Via without_protection
User.new({ :first_name => 'Jamie', :is_admin => true }, :without_protection => true)
```