Fair enough this happened when she was sick ( I always find my two lose their continence a little when there are about to come down with something), and whilst her big sister had to go in and out of hospital for numerous tests and procedures.
I took it that she is obviously 'sensitive' to this and was being affected by it, decided to bide my time and then get her back into pants when things have settled down....
...they've been settled since Christmas and still she misses every signal for needing a wee, and will also happily fill her nappy in front of you if she is not caught and placed on the pot.

I'm going to have a 'no nappies' day with her at home on Sunday, to see if we can get her a little more into the swing of things, but she seems to not register any of the signals at all. I'm worrying that she's got some underlying UTI or something and that I'm just dismissing it off hand. As I have to be honest and admit that I'm a little inclined to think that she's just being a bit lazy.

Any thoughts folks?
Lorna x