So, we figure a child who has learnt to read at such an early age, should be aware of what she is doing (and obviously is), then she is also old enough to clean her own mess.
We won't clean up her mess... DH gives her the cleaning stuff and sets her to work. And until it's spotless, she has to clean it. Does that border on child slavery??
Ooh good idea! She can clean up her own mess and see how she likes it!

Actually, she hasnt had an accident in the last 2days since I stopped paying any attention to it and just dealing iwth it matter-of-factually showing no emotion whatsoever. So fingers crossed!