The next time you need to go to the post office, for what ever reason, could you be so considerate as to leave your precious, adorable, screaming, "god's little miracle" utter shit factory outside in the mommy-mobile (or bike-basket), could you? It's more than bad enough that you've selfishly chosen to deplete Mother Earth of resources. The very least you could do is spare us sensible adults the sheer psychological torture of having to endure your spawn's siren-like waling... in a POST OFFICE of all places, REALLY??? Having problems breast-feeding?
If you're too lazy/cheap/poor to get a BABYSITTER, then just let it stay in the car next time, will you? It's totally legal, so long as you crack the window open approximately 2 inches.
That is all, #okgoodbyenow.