(1♦)-2♠-(3♠)-P
(3N)-P-(P)-P
I ask what 3S (unalerted) was. Asking for a stop. At this point partner indicates that there should have been an alert and wheels in the man.
I'm known for some pretty fruity favourable WJOs (systemically with a different partner, xxxx is sufficient, and this is pretty widely known locally), it is by no means inconceivable that you might want to play 3♠ natural over this, although with this partner we play them a bit more sane.
It appears to me that partner may have been about to double 3♠ had it been alerted to show a top honour.
I now have to find a lead. The opponents have caused the problem with the faulty non alert, but I have ethical issues with potential UI from partner's actions.
What should my thought processes be trying to find a lead, and what would you lead ?

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