Originally Posted by
Cyranoak 
the moment he asks your son to blow into the interlock for him, and the moment he asks you to do the same. Especially your son needs to be armed with a response in advance.
Take care,
Cyranoak
I've already made it clear that we won't be riding with him even with the interlock in his car. I do most of the driving anyway since I get severe carsickness. My AH has never really been very helpful when it comes to shuttling our son around so I doubt I'll be using his services this next year. And, I've already told our son some of my 'rules' for being with dad.