Lots of thought is given to how to organise oncall rotations — around people's schedules, around periods of critical coverage, and with fairness in mind. Less thought is given to the human aspect of oncall —how it affects people's ability to get other work done, their general cognitive flow state, and burnout rates. This talk will present a paper used internally in several SRE teams at Google to organise rotations around people, bearing in mind that people are not machines.