Talk:The Bin of Sin/@comment-4947372-20150125204536/@comment-25547603-20150125214130

Because Mona didn't want to recruit Spencer for real, she's always been a minion and it was a set up to be exposed as "A" and letting the real "A" prepare the plan for "that night" (3x01)

Or at least, this is what I've always been thinking haha