Open Mouth Insert Foot

I was at work today and it was around 3:30pm. I was in desperate need of some coffee to help me make it through the last 4 hours of my 12 hour shift. So my friend and I went down to the coffee shop to feed out caffeine habit. The woman running the coffee shop, said that she was closing early today so we could have what ever coffee was left for free. Yeah, free coffee! There is good in this world!
So we load ourselves up with as many coffee cups that we could carry. She took two, wimp, and I managed to carry four (my old waitress skills came in handy).
We got back up the unit and passed out coffee to whom ever wanted it, I of course saved one large one for myself and another for my very good friend, Jen (us Jen's stick together).
I handed her her coffee and she said, "Yeah! Is it black? Because, I think I need to doctor it up"
"Doctor it up? What? I thought you took it BIG AND BLACK!" I yelled over every one else.
As the words, come out of my mouth. Every one around me starts to snicker and quickly looks down at the floor. Some people even turn red in the face. I was thinking, what? What did I say.
Then I get it, start to snicker too and out of the corner of my eye, I see a very tall, very large, African American man walking down the hall, scowling at me. Thank God, he just kept on walking. If he would have stopped, I think that I would have crawled under the desk. Open mouth, insert foot.
Please excuse me now, while I gotta try and extract my foot from my mouth. So that it is ready for the next time (and yes there will be a next time, there always is).