Oh my goodness, how sickening! I can understand how you could take it on board and feel like a bad mother - and how hard it might be to believe us when we say you are NOT! Truly, Dee, it really is 'one of those things'! How could anyone predict that could happen from a simple trip to the loo with a big sister??? You can't. I hope you can stop flogging yourself sooner, rather than later!