Clan Chest question
We're a clan of about 35 core members and 10-15 transients who remain for less than a week or so. Today I donated a Clan Chest to celebrate a particularly tough battle that we won. Everything went OK except that at one point an opportunistic SOB of a non-member joined the clan, grabbed one of the biggest prizes (4,000 Silver feathers), and left the clan--all within the space of a minute. The smash-and-grabber's ID was "Interstellar" if that makes any difference. Was this just a lucky strike? Or is there some way for non-members to know/detect when a chest has been opened? I don't want to believe that's possible but, given the unusual circumstances, I just have to ask.
-- Bob