Season 5: Episode 101: Arthur, Spooner
Carrie has been put in charge of overseeing a group of people who will be organizing and distributing legal documents for one of her firm's big cases. The catch is that her team will have to work the night shift, and they're "not the sharpest tools in the shed." Doug is disappointed by her new appointment because this means that they won't be spending any time together, but then decides to use her time away as an opportunity to do whatever he wants – eat in bed, not brush his teeth before he goes to sleep, etc. Unfortunately, he starts to get a little lonely but soon discovers that Arthur makes a suitable companion to keep him company.