You may be surprised to learn how much "intelligence" is collected by postal clerks. 
pic.twitter.com/CkQp3ONgxT
I can't get over just how friendly my local post office is! This sounds really cliche, but it makes my day every single time I go in
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.