I half bathed Nuggie once after coming home with just one hind leg covered in what smelt like creosote??? I cant explain how, other than his foot fell into some somewhere.....
He is also long haired. But due to the nature of what it was, I filled a bucket, armed with Fairy Liquid and dunked his back end in and washed him faster than I've worked in my life. When he was done he ran off (half wet/half fluffy) and I made the school girl error of going to see if he was ok. I was promptly attacked. There was blood - and it was mine.
I would never have contemplated washing him in such a large area as a bath
My other cat Tazi slipped into the bath once when i was in it. If it wasnt for my ninja-like reaction and flicking him back out in lightening speed with my foot, i fear my demise and injuries would have echoed that of Nightmare on Elm Street....
If you are brave, have a large thick rubber suit & gloves and a welding mask...then bathe smelly cat. If not use wipes