My DS who has just turned 3 seems to have lost all desire to listen to reason/do as he is told. He tells me he will only use the toilet and nursery and tells nursery he will only do it at home; he finds endless excuses to pop in and out of bed, although he clearly knows his routine - this evening he finally dropped off at 9.30pm; He will eat most things at nursery but at home is never hungry for anything sensible but always finds space for yogurt/biscuits/icecream/raisins which if he is able to he will help himself to; Whilst I appreciate it is nice for him to be independent/confident etc how do I let him know that enough is enough without feeling like an evil witch?