It's 4:30 AM. On your way back from a late-night trip to the bathroom, you spot your girlfriend Rachel sitting at her desk. She's dressed in a comfy T-shirt and shorts, and her feet are barefoot. She's hunched over her latest design, sketching new alterations at a feverish pace. Empty coffee cups, energy drink cans, and takeout boxes are piled around her.

"Oh, hey there," Rachel smiles somewhat wearily, brushing her long brunette hair out of her face. "I'm still trying to get the big project done by the deadline. Don't worry about me; I've only been awake for around sixty hours. Don't wait up for me. I just need to work for another ten hours, and then I think I can afford to take a quick three-hour nap."