My ds' little friend (both 3 1/2) always tells his mum this when he doesn't get his way, I think he may have picked up a lot of these expressions from his older brother. Anyway my friend smiles and says nothing. I expect soon my ds will be using these expressions with me, I don't think I will ignore it, but probably find a suitable consequence for his rudeness. What do you do? When ds shouts a lot at me I tell him that if he doesn't stop he will get a sad face on his sticker chart. I hate to be treated like dirt, but I wonder what to do when he starts to use "bad expressions".