Cave Johnson, Lemon Arsonist Extraordinaire.

Anyone who's a gamer out there probably knows that Portal 2 is out - and that it looks like it was worth the hype and is a worthy successor to Portal. 

But did you know that the founder of Aperture Science, the enthusiastic and slightly crazy Cave Johnson, features in it? Well... his voice does, anyway, as his recorded voice gives instructions (and colourful commentary) to Chell through the first test chambers.

To CJ. A guy who never took lemons from life. Who is responsible for me never being able to look a lemon in the eye again without thinking about arson.

You can find a full list of Cave Johnson quotes here and a list of Portal & Portal 2 memes here.