Failing to score political points

I suppose I shouldn't be surprised that politicians attempt to score political points. That is part of their job. But I thought that Diane Abbott tried to do so particularly overtly on yesterday's Question Time. Though on a couple of occasions she failed to do so by accusing others of saying or thinking things that they disavowed. To those who are listening, these are shots which are off-target. In fact, they are own-goals which just make the sticker look silly, careless or low.