(Note: this is all geeky in-jokes. Don’t worry if you don’t get it; it just means you are not obsessed with weird old console games!)
So I have one of these on the trunk of my car; here is a rather bad picture:
When I was driving out of the lot at work the other day to go home, I noticed a piece of paper had been tucked under my windshield wiper, so I parked again and got out and looked at it.
Here it is:
Needless to say, that made my day. :) Thank you, anonymous colleague and fellow Portal fan!