Christi:
Not carrying the card doens't make you NOT who you are

See above.
that's true. my thinking was:
scenario 1: PI Lawyer gets a list of the crew and passengers/divers on the day of
the accident. Joe Schmoe, OW diver is listed. on to the next diver.
scenario 2: PI Lawyer gets a list of the crew and passengers/divers on the day
of the accident. Joe Schmoe, DM, is listed. guess who just got himself a
starring role in a deposition? hopefully, it will end there... but you never know.
now, other than from the information the DM provided to the dive boat, the
PI guy would never know who is who. end of trail.
so my advice is, definetly fly below the radar if at all possible. why go asking
to get dragged into something you have nothing to do with?