Not exactly anonymous, but even so: https://www.penny-arcade.com/comic/2004/03/19/green-blackboards-and-other-anomalies https://www.penny-arcade.com/comic/2004

Not exactly anonymous, but even so: https://www.penny-arcade.com/comic/2004/03/19/green-blackboards-and-other-anomalies https://www.penny-arcade.com/comic/2004/03/19/green-blackboa...