I believe fox tails have a bone that runs down the majority of their length, and the fluff is mostly horizontal. It's not going to just get sucked into something like a cotton ball would; not to mention she has proprioception of where it is and would avoid putting it near moving parts.
That jail loli form is so cute. It feels like he's teaching his daughter to ride a bike, until she spouts "Dear husband". And then a plethora of police will encircle them.