For health and hygiene issues for girl and other clients I think it would be important she spit and wash her mouth after CIM. Nothing personal but I wouldn't like to be her next customer if she hadn't. It would seem sensible general practice, particularly if girl does DFK, and you wrote that she does. I am not all that keen on combination of DFK and CIM for this reason. I generally wash my mouth with Listerine after DATY as a precaution. We all need to look after ourselves. Apart from this Mandy seems like a good punt. Any idea off age.