Kilroy was here

It's hard to say, to describe, but it was like a long-nosed individual peeking over a wall.

And the sign underneath it said, Kilroy was here.

Well, that caught on with the GIs in World War II.

And they would make those drawings.

Let's make a connection between the two"? Or is this directly where they got the idea, and they just built a Doctor Who idea into something in the DLC? I think it's more likely the second, but what do you think? [upbeat music] Now, there's still a little bit more graffiti to talk about.

Do you guys know who Kilroy is? "Kilroy was here." Have you seen this anywhere in the DLC? Maybe the think tank or the sink where you have this funny little character, a little bald character with a nose and fingers peeking over a wall, and it says, "Kilroy was here." That is a reference to World War II graffiti art that looks basically identical to what you see there.

And I dug into this a little bit.

It turns out that it's very hard to know exactly when this became a thing during World War II.

The American soldiers had kind of their version of this.

The British soldiers had a slightly different version of this, and it was something that they would put on walls or even on weapons and things.

And it got to the point where when the Germans confiscated some of the American supplies that they found, they found these little drawings kind of etched on things, and they thought Kilroy may be a spy who was labeling things that he accomplished out in the world.

And so they kept an eye out for a spy who went by the code name Kilroy or something like that.