9) You catch him peering in your mail slot at 3 in the morning.
7) He's seen delivering the mail wearing nothing but his bag.
6) He regular beats up the Paper boy and the Milkman for delivering on his turf.
5) He tells you that there's postage due at gunpoint.
4) Twice he has hidden in your bushes and done a sniper attack on the UPS guy.
3) He delivers mail wearing a hockey mask.
2) When he comes to your house, he always has blood on his pants.
1) He asks you regularly if you would like to see his underwear made of stamps.