Club game. North asked East about the second double. East told North the second double was a penalty double. North thought for a short time and chose to pass. East now did two things simultaneously: he placed the 3♣ bid-card on the table, saying "...or maybe responsive." Director (me) summoned. I should have rolled back the auction to let North rebid with correct information, but I allowed the auction to continue, and E-W eventually made 130 by refusing to take the club finesse in 4♣.
North objected that with correct information about the second double he would surely bid 3♠ and did not think either opponent would venture a vulnerable bid at the four level. 3♠ can be beaten with careful defense, but seems odds on to make against normal defense. East was adamant that he would bid 4♣ over 3♠, and argued that he would bid clubs at the three or four level whatever the double actually was. They did not seem to have an agreement about this, based on the look East gave West when he saw the dummy. Two East-comparable good players were given the East hand and chose pass over a hypothetical 3♠ call as a standout. I ruled +140 to N-S based on the misinformation. East-West wanted this to see the Internet for more opinions. I know I can count on you to provide them.