palustris1

I pass OR I should begin to look after a new partner. If i cannot trust him, no need to go on with him. The double is penalty, not optional penalty. If you are not ok with your 4S bid, don't make it. An important point here is to discuss with partner the exact meaning of 4S. That hand is a possible hand for the bid ? Yes, so you pass. No, you don't make it. Easy ?

First, 3S is an underbid. Even so, 5S equals 0 Goren point. You just défend against a défense. Pass 10 points, double 5 points. i'm not so sûre 5C will fail , even if it does, the penalty will not be enormous. It would have been different if partner had made a limit bid, 3C for example, then double would have been clearcut.