I go to the school that helped produce waking life, got to see a sneak preview before it was released
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Mating.
After that, sleeping and eating.
After that, laziness, because if you are not sleeping, eating, or mating, you need to be conserving energy for eating and mating.
If prompted - fear dominates - because being killed will prevent eating, sleeping, and mating.
So, most of the time, mating takes priority, then food, then sleep, then laziness, but fear takes absolute priority on the occasion when there is an immediate threat to life and the fullfillment of the above goals.