Perhaps Tagg Romney wasn't the only family member who was visibly angry with Barack Obama after last week's debate.
CNN caught Mrs. Romney scratching her face with an extended middle finger while facing the President. There are a couple videos available, but I like this one because it shows Ann's orientation in the room, and the President's location in respect to where she is standing. (Obama is in the background. It's hard to tell where he is, exactly, but there are basically two crowds of people, one crowd turned toward Mitt, and the other crowd turned to face, presumably, the President.) You can see from the wide shot that Mitt is in the foreground, Barack is in the background, and Ann is between them. In the close up, you can see her back is toward Mitt, as she spins around to her left. This pretty much has her facing Obama during the "scratch."