I’ve found it’s the sound of water that freaks them out. Poor baby is just nervous. Next time fill a bathtub partially with warmish water, don’t let the cat near while it’s running. Once it’s off bring in dirty kitty and let them stand in the water, then gently pour the water over them with a cup or something. My cats all love this, only had to do it once to my void when she got covered in shit as a kitten. But my tuxedo needs them once every few months because he gets crazy stinky and isn’t the best groomer.