That's the whole point dudes! That's why it's a joke...err obviously if this was good maths, then it would be borne out by experience: i.e. no one would ever do anything apart from the activities listed above.
Oh and who said 3 hours in the bathroom? 3 hours daily routine he said. Sounds about right to me! The time between waking up and getting up, a few mins in the bathroom, making food, eating food, shopping for food, walking between places - it all adds up to the 3 hours per day daily routine.