troop/troupe

This one is easy.

Any organized group of people, with the exception of those in the performing arts, is a "troop." Therefore, the group of actors performing at your local community theater is a "troupe."

So, if a nice group of uniformed little girls has a table set up outside the entrance to Wal-Mart selling cookies, and they have a sign that reads, "Support your local Girl Scout troupe," turn and walk the other way -- and make sure you turn 180 degrees. (See previous post for clarification).

Are we set on this one?