According to the woman who brought this bike in, her husband has been riding it this way for a couple of years.
The front brake was disconnected, but could be hooked up and function back there, provided the rider does not turn too sharply to the left.
For extra credit, the quick release was wing-nutted tightly in this position.
Visit YOUR Local Bike Shop today, for the relief of these and other complaints!
A public service message from wrench nerds of America.