Do your best to keep the story to the "for Dummies" size..
Dont ya hate it when your team finishes up a 70 hour install and the clients client shows up at their new building for the first time and blows a gasket because the film installed is 'NOT WHAT WAS APPROVED".
Turns out many samples of various whites were sent out and each one had the film removed by *someone * so the client ended up looking at and approving A LINER!!! Gee wonder why that didn't match!!
Just keep repeating " I don't pickem....I just stickem" when something seems odd. Eventually you will get to do a huge removal and replacement!!! :money