Floating ground ?

[maxhifi]

Originally Posted by dieseljeep

The new code requires that all receptacle connections be pigtailed, when the circuit feeds more receptacles down the line, just for that very reason.
The code can't dictate the method of termination, as long as the device is U/L listed for back or side wiring.
AFAIC, these devices should loose their U/L listing, as I'M sure, it is the cause of electrical fires. Usually receptacles used for portable electric heaters or window air conditioners.

Really? I hate how the solution to poor workmanship and poor product design is always more rules, that's a complete waste of effort and will require more deep boxes than usual.