Excuse me, when a policewoman performs undercover tasks in the bathroom, she must pretend to take a bath (meticulously). Where should she hide the bug in her body?
First of all, if you are in the bathroom, you will definitely not hide in other places, but only in your hair, and this premise is waterproof. Secondly, if you are a policeman, you shouldn't know this kind of thing. You should learn relevant knowledge in the course, because you don't want to influence other places and then be more conspicuous. Secondly, you should look at the size of that thing, if possible.