I knocked on the door of an apartment on the second floor of an old building. The shutters of the window down from the door open and a missionary sticks his head out and says, "Hola Presidente, ¿Cómo esta?" I say, "Fine, Elder. How about opening the door?" He says, "Sorry, I can't. We lost the keys to our apartment last night." So, I say, "We'll, Elder, how am I going to get in and out to visit you?" I will let your imagination fill in the rest of the conversation that took place over the next 15 minutes. Here is a little help for you...
Entering like a thief in the night!
Luckily, there was nothing cooking at the time.
Might as well leave with the same dignity with which I entered. I could not make this up if I tried!