Yosemite Landscape

When I came home Sunday morning,  I found quite a few mails in my mail box. I never seen so many mails delivered in one time. Anyway, I checked the mails one by one. And I noticed they were not addressed to me but my neighbor and neighbor's neighbor and another neighbor. Three different addresses. I guess deliveryman didn't want bother with them decided put them all in my box, so, I have to deliver them to neighbors. Why do I have to do this. I didn't get any mail for myself but mail delivery duty.