I'm scrupulous about my HYGIENE,
I regularly disinfect my hands...
The Big Bang Theory Season 3, Episode 15
your personal HYGIENE or
the fact that your science,
The Big Bang Theory Season 11, Episode 17
Third World HYGIENE.
The Big Bang Theory Season 5, Episode 1
Intelligence,
ruthless attention to HYGIENE...
The Big Bang Theory Season 2, Episode 13
I let you buy
feminine HYGIENE products
The Big Bang Theory Season 7, Episode 2