This is one letterbox the postman may not mess with - Ned Kelly stands ready.
For those who are not Australian, Ned Kelly was a bushranger (criminal) in the 19th Century in Victoria. He was hanged in Melbourne however he gained a reputation for wearing suit of armour when confronting the police.
See these sites if you want to find out about Ned Kelly: http://en.wikipedia.org/wiki/Ned_Kelly and http://www.ironoutlaw.com/