Since all my bills come electronically, I've considered cutting the bottom out of the mailbox and attaching it to the top of a wood stove. Then the junk mail drops down, and is ready to be burnt.
Hitting mailboxes with a baseball bat, setting off a pipe bomb or deliberately striking a mailbox with a car may seem like "sport" to some people, but it's a crime that doesn't pay off. Mailboxes are protected by federal law and tampering with them can lead to some serious criminal penalties.