I have actually thought of doing that myself.
Foxy is a bugger for fidgeting and running off when having a bath. So one time I thought, why not put her in the shower... I get in too and then it doesn't matter if I get soaked, she can't escape... she can shake her fur all she likes as I will already be wet. Also saves a big wet floor too
But she's getting better, she actually doesn't mind having baths now. The last one she had outside. I got a dolls baby bath and did it in that, she's so small it's easy to bath her.