So many of those examples are my son all OVER!!!!!

The *** was completely and 100% my own fault. He would frustrate me to no end at bed time, and i said it, and now he says it.. like your DD, sadly appropriatley!! We have tried to stop it by encouraging "Oh dear" instead and offering more attention when he says that instead!!

I dont know what to suggest, my ds isnt responding to anything calm and gentle or not so calm and gentle, just wanted to let you know your not the only one!!!