When you choose to not work as an able-bodied person you're really insisting that your community should be forced to give you resources while you contribute nothing.
Any collectivist commune would kick you out for this.
It's also interesting you use the McJob angle, because when you consider the price of a Big Mac, labor is by far the largest contributor of cost, not profit.
A Big Mac's cost is 30% labor, 25% ingredients and only 5% net profit. The remainder is operating costs. Seems like a pretty good deal for the people making the Big Mac, they're getting 6x more than the franchisee gets.