if we'd had her in a room full of other kids. But just home alone, she was plenty happy to sit in her own pee, etc., rather than stop what she was doing.

I didn't have much luck until I found a book called "Dry all Night" which had a story about a child who wanted to be Dry All Night so she could go on a sleepover at a friend's house. THAT was what got through to her - finally she understood why this was an important issue.