Think I deserved the award for child-focused step-parenting this week.
My step daughter was in serious car accident with her mother and two year old brother, a head-on collision with a lorry. Thankfully everyone came away unharmed but her mother is now facing a drink driving charge! 
Despite being exceedingly angry and completely scathing towards a parent who drinks in the afternoon and then hurtles down the motorway with two children in the car - I managed not to say this to my step-daughter. Only had a brief chat with her about how upset I was, and that I was very angry with her mother but that the people we love sometimes do things that aren't right, and that are not okay with us - but it's still okay to love them etc.
It's really hard when you have no respect for someone's choices to speak well of them to their children, but I remember how difficult I found it as a child with your conflicting loyalties where parents are concerned.