I have a suspicion that my mailman is getting into my mail. For the past six months i have noticed smudges (from food), and they are crinkled really bad like he wadded it up bad. I get really important stuff in the mail (pins, broaches, etc) and notice a cut in the corner were the items are taken out. And sometimes he wont even show up to deliver the mail. I know it is a really difficult job but what should i do?