In Second City's 100th revue, money talks and hilarity rules
THEATER REVIEW: "Who Do We Think We Are?" at Second City ★★★½ Of the previous 99 mainstage revues at the Second City, almost all have offered the audience a chance to shout out suggestions for improvised scenes. But you have to be loud and fast — and even then some other schmuck's dumb idea might get picked over your gem. The 100th mainstage revue, directed by Matt Hovde, corrects this nag…