You can always pull your 5th wheel this way...

Maybe a joke or just to get it off the highway. Practically speaking there are some big issues. With a short tongue there is no adequate turning angle. No weight distribution or sway control with a trailer that is 'tail' heavy with lots of sail area. So, quickly the rear bumper of the truck would be trashed and the hitch would break off the trailer frame. Or, just spill a soft drink under the truck tires, traction goes to zero and nothing moves unless 4wd.