Well girls, thanks for the updates!! It's news to me that I'm on 'It Takes Two' tomorrow! So thanks for the info Lona. I knew Susanna is due to be on, but I'm still waiting for my invite! 
Thanks shysal for Radio Times alert. I've just seen it.
The back story is that it was Susanna's youngest son's birthday treat to go to the Harry Potter studios for the studio tour, but one of his brothers had his first football match that day, so Dad and middle son had to go to the match--leaving a spare ticket. The other boys asked: 'Can't G'ma come instead?"
So I happily went to Harry Potter (it's a fascinating tour, at Leavseden studios near Watford. If you have H.P interested grandchildren do try to take them--just prepare yourself for the inevitable disappointments in the huge shop at the end, when children's budgets won't cover the ridiculously expensive items.
)
Susanna commented that she was wearing some flat 'ballet pump' type shoes to give her feet a rest. By the afternoon she admitted that they didn't fit too well, and had to find the Compeed plasters in her bag!
I think, at that point, I did say something identical to the quote in her Radio Times article! i.e. 'For an intelligent woman, you do make some foolish choices". Said lovingly with a hint of resignation.
I'm sure many of you know the feeling. We've brought them up, and let them go--and fly they have to, with their own choices!
They were pretty shoes--but how on earth she managed to do that Jive with blisters I just do not know! Fingers crossed for her for this Saturday.