It is a fire hazard. That’s all you need to say.
In my home inspector electrical classes, I spend about half an hour explaining the dangers of two grounded conductors under a screw. Under the right conditions, upwards of 240V could be impressed across 120V loads.
I have a more detailed explanation here
What other educational resource do you need…
408.41 Grounded Conductor Terminations. Each grounded
conductor shall terminate within the panelboard in an individual
terminal that is not also used for another conductor.
Exception: Grounded conductors of circuits with parallel conductors
shall be permitted to terminate in a single terminal if the terminal is
identified for connection of more than one conductor.
Post #3, you guys should real the whole thread. :roll:
Not Me…I don’t read old posts…just the one right before mine because I just don’t care…;):twisted:
LOL, don’t mind my Monday crankiness. 
Thank you everyone for your input, links and resources. I greatly appreciate it!
LOL…it’s ok fella…ask your buddies over on the MH forum…I have Monday - Sunday Crankiness…;)…it’s all good…
Keep it Simple …
