Declarer takes a bid from the bidding box. Between its selection and it being put on the table LHO puts a pass card in front of himself. Declarer realises he has selected the wrong bid and wants to change it and does so well within the permitted time. His RHO the tells him he can't change it because LHO has bid. Sounds nonsense to me. Surely LHO should have waited till the bid was completed before passing. Comments please.