I have to give credit where credit is due. Sharkey and Charm have set a true JR example to Marshall each time they charge in and out of the door in a typical struggle to see who is most dominant. Charm is faster. Sharkey is more like a tank and although she doesn’t arrive first, she barges her way past everyone - those short little legs and masterful stance daring all who may challenge her.
This is the first time Marshall has exhibited true JR behavior. He now barges his way through that door with the other two and can hold his own, even with Sharkey. The doormat moving beneath him no longer terrifies him; neither does the sill, or the door itself.