Tonight we had meltdown of the century over getting out of the shower after she was a prune. It took 30mins of trying every distraction in the book to calm her down.
Our kids think we have a dodgy hot water system (it is a brand new house ) when we want them out we turn the hot water off and then tell them we have run out. Usually they jump out as soon as the water turns cold now. But you have to be sneaky about it and not let them catch onto what you are doing.