We had a flea infestation once when I lived with my ex. Previous renters had an indoor/outdoor cat.
We de-flead one room in the house and were gonna bathe the cats and put them in there while we tackled the rest of the house.
My cats, Spaz and BC were fine with it, they were used to occasional baths.
His kitten didn't like it, but took it in stride.
Then when it was time to tackle his very unwilling Bombay, he decided the best course was to stay fully dressed and just get into the tub with her.
First she climbed the grout, yelling at him like a banshee, then she completely buried all ten claws in his temples and gave him a black eye to boot
Thankfully, she has never again had to endure a bath.