I know I’m not the strongest declarer in the world (or even at the table) but I didn’t realise my partner(s) literally stop breathing when they put dummy down. Unusually, I was declarer on quite a few hands in the recent European Mixed Teams, and I started to get an uneasy feeling when I heard a loud exhalation of breath coming from pard, which sounded like pheeeeeewwww, when I made my contract.