Leon wrote:
....

Code... hmmmmm. Naw there was no ground at all in the box that I spliced
into. ;~) The dryer and shop share the same circuit. If I ever move I
will yank the external addition.

I bet there is...(a ground that is)...

If it's 3-wire dryer outlet the "neutral" will actually be on the ground
connection conductor...so when you tied your third to it it is also
ground. I'd wager that's what you'd find if you were to check the
circuit connections in the panel.

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