Grimace and I agree - a dry crate is the first step in keeping your mom happy. There are other qualities you need to work on as well.
Self control for example. Bulging eyes - at any time, are really un-cool. That is especially true when Grandma is snapping picture after picture. Avoid any photographic evidence of un-cool behavior (and that can be a challenge because lately she has that stupid camera with her all the time. How many pictures of dogs does one woman need?)
Remember - lesson #1 - Be cool!