To clarify, donkey votes are perfectly valid. This is where the voter simply fills the boxes the same as they are displayed (first presented candidate gets numb

To clarify, donkey votes are perfectly valid. This is where the voter simply fills the boxes the same as they are displayed (first presented candidate gets number 1, second gets 2, etc.). A donkey vote is a formal vote, just one typically driven by the same factors that would drive an intentionally informal one. An example of an informal vote that I encountered during scrutineering a local council election is when one voter drew their own box, labelled it "Tony Abbott", and voted for that.