Thanks for bringing this up Torontokids because it's something I struggle with all the time. I don't tell the parents that their child was taking toys or little things that are my job, no. But I tell them if their child had a crying jag or was grouchy or wouldn't eat well, etc., the important things. I do wonder if I tell them too much. I'm careful to share all the successes of the day too and the good things. I think if you temper the good with the bad at the end of the day it's ok.