SFL sets the tone with his Ethics Seminar plug. (Anytime I see Tannebaum I review my malpractice policy limits.)
If, like me, you "delegate" document production to your associates and "carefully" review the production before made, you've encountered the dreaded inadvertent disclosure of privileged material.
We all know what to do: read FRCP 1.285. Or, to simplify, give it back.
To simplify further, below is a visual demonstration of how to best handle this ethical conundrum.
Have a great weekend.