My letterbox can be a) trivially broken into b) knocked over as it isn't concreted c) stuffed with dog poo. These risks however aren't a major concern for me,

My letterbox can be a) trivially broken into b) knocked over as it isn't concreted c) stuffed with dog poo. These risks however aren't a major concern for me, and people who choose to send me mail don't assume security or deliverability.