infected Valentine cards on the internet. And Keith was like, "Hey, we could make some money selling those." So he got out his little sister's box of crayons and made a couple. Then, I was like, "Keith, we ain't gonna make no money selling five cards." So he spent a whole year drawing, like, a thousand cards or something. Then we saw new versions of those cards, like, to download the next year and ...
Rochelle: Ellis, sweetie. Not now.
[Thanks for the tip, Jesse!]
Source - Valve Valentine 2010 [PDF]