Quotes from Eileen Roth

Nobody's home. Don't answer the door during working hours unless you're waiting for a special delivery. Use a peephole if you need to know.

Whether you're driving a car or playing basketball, churning out a report or researching torts, the ability to get in the groove so that you're working with time instead of against it is key to peak productivity.

At the very least, let them know what you've done.