I've worked on a children's app for Android where the client wanted advertisements moved from the main screen (where parents would see it) to the content screen

I've worked on a children's app for Android where the client wanted advertisements moved from the main screen (where parents would see it) to the content screen (accidental clicks only from children). That change in design made the client "dead to me" especially when they next wanted me to work on another child app where the business model was: Fooling children into initiating SMS charges against the phone.