Postal Worker: Oh, no.
Postal Worker: It's a... priority mail box.
Moi: Thank you! But couldn't I just cover it in brown paper or something?
Postal Worker: No! The mail room guys will recognize the size and know it's one of our boxes and they will send it back to you.
I wondered if I should stay with this conversation a little longer and make her look stupid in front of everyone, (my natural inclination) but thinking about what I should do rather than what I can do, (yep, those Conference talks are taking their toll) I allowed her ignorance to be just between her and me, and God.... and you. And I will be taking my brown-paper-covered-priority-mail-parcel-post-stamped-box elsewhere.