If the proverbial 'man from mars' took a look at developed Western society what might he see? A middle aged man gets up at 7am and climbs into a car, conveniently parked right beside the shabby dwelling he sleeps in. He then spends the next 18 hours ferrying other people from location to location stopping only to use the toilet. He eats when he can - maybe a rushed sandwich during a 5 minute quiet period until he is again summoned to the next person. At the end of the day he returns to his starting point and, exhausted, collapses into his bed. The next day he repeats this.
The man from mars concludes that this person must be a slave.