Thanks Nap ! Thanks Joe.Thanks on that research comment btw, it's true I probably spend an inordinate amount of time researching ,trying to immerse myself into the situation. The title comes from a Iwo Tanker and his name for the Sherman tank.... being cooped up for hours , the smell of cordite ,human smells and unsuccessful attempts in combat to rid the tank of human waste ....well don't need to get into any more details, suffice to say it wasn't a pleasant experience.This depicts a rare moment on Iwo (photo documented) of being able to get outside the tank (without sniper, shelling of all types) as he-said the " Port-a Potty on wheels".