Abstract :
PROFESSIONS LOVE poking fun at one another. There´s a mean joke, for instance, which goes: How many social scientists does it take to change a lightbulb? None, because it´s not a social scientist´s job to change lightbulbs; they´re there to figure out why the last one went out. Now, don´t let anyone tell you that engineers don´t have a sense of humour.
