If we do it the classical way, we give it the objective of, "Fetch the coffee, I must fetch the coffee, I can't fetch the coffee if I'm dead," so obviously the PR2 has been listening to my talk, and so it says, therefore, "I must disable my 'off' switch, and probably taser all the other people in Starbucks who might interfere with me."
Si lo hacemos a la manera clásica, le damos el objetivo de traer el café. "Debo traer el café. No puedo traer el café si estoy muerto". Obviamente el PR2 ha escuchado mi charla, y por tanto, decide "Debo inhabilitar mi botón de 'apagado'".