[cheald]

By extension, developer time is too expensive to be wasted on long lunch breaks, socialization with co-workers, or toasting your bagel in the morning rather than eating it untoasted.

Basic hygiene/workspace maintenance is everyone's job. There are people who specialize, of course (the cleaning staff; if you have them, developers aren't scrubbing toilets and steam cleaning carpets, of course), but it takes literally 5 seconds to rinse a dish and put it in the dishwasher, the act of which improves the entire workspace and contributes to overall order in the environment. If you don't have a dishwasher, it might take upwards of 30 seconds to wash your plate, dry it, and put it away.

Developers are actually in a unique position where they can do their job while doing other things; much of a developer's job involves thinking through problems, and menial physical tasks are actually a pretty great way to get your brain engaged on the problems.