My 2.6 DD has just realised (after being trained for 2 months) that 5 mins after bedtime she can shout "mummy wee wee" and get taken to the loo, hence delaying bed time. This is after she has been sat on the loo, and produced a wee before bed. She wears a nappy at night. The last few nights we've had to take her to the loo twice and she has done said wees, insisted on a new 'dry' nappy and then finally gone to bed. Is this a phase? Anything I can do to nip it in the bud?