My DD (aged 2y10m) has recently started wetting herself deliberately. She has been toilet training since end April/May. She has had phases of this before but we have given her the benefit of the doubt and thought they must be genuine accidents. This time I'm sure now that it's deliberate. We have tried star charts, praising her for keeping her pants dry, showing annoyance and disappointment, everything. The trigger actually seems to be praising her for keeping her pants dry. Recently I realised that she had not had any accidents for 2 weeks, but had a feeling it best not to say anything to DD. I mentioned it to DP that evening. The next day he told DD that I had told him she had not had any accidents for two weeks and he praised her. Sure enough she started wetting herself again that day. She is having two "accidents" a day. It really upsets me that she behaves like this and I can't understand what could be the psychology behind it. Has anyone else had this problem?