Portal 2 Cave Johnson's Lemon Rant HD Wallpaper

A poster with the title 'What To Do When... LIFE GIVES YOU LEMONS.' It lists instructions such as 'DON'T MAKE LEMONADE!' and 'MAKE LIFE TAKE THE LEMONS BACK.' The poster includes a crossed-out glass of lemonade and a checklist of actions: 'YELL - I DON'T WANT YOUR DAMN LEMONS!', 'DEMAND TO SEE LIFE'S MANAGER.', and 'BURN DOWN THEIR HOUSE.' The Aperture Science logo is at the bottom.