It is poor civic hygiene to install technologies that could someday facilitate a police state.
I think that carrying on a life that is meant to be private in public is a breach of taste, common sense, and mental hygiene.
I do a lot of vocal hygiene.
I'm a hygiene freak. I'm like obsessive-compulsive when it comes to washing your hands.
Man does not live by soap alone; and hygiene, or even health, is not much good unless you can take a healthy view of it or, better still, feel a healthy indifference to it.
Ya know what I do almost every day? I wash. Personal hygiene is part of the package with me.
Irony is the hygiene of the mind.