Knock before entering

The sign I posted on my office door today really does say it all:

Really, I have to get this done. Really, I can’t do it with you knocking on my door or better yet, barging in every 3 seconds. And finally, food is necessary and I like food. So editing stops when it’s time for food.

Now back to work!

(And one day, children, we’ll talk about the huge collage I’ve been creating on my door for over a year.)