I must take responsibility. I had to stop
for feminine HYGIENE supplies.
The Big Bang Theory Season 4, Episode 3
your personal HYGIENE or
the fact that your science,
The Big Bang Theory Season 11, Episode 17
I'm scrupulous about my HYGIENE,
I regularly disinfect my hands...
The Big Bang Theory Season 3, Episode 15
Third World HYGIENE.
The Big Bang Theory Season 5, Episode 1
And after that I'll make up my own rules
of oral HYGIENE...
The Big Bang Theory Season 6, Episode 21