One

Cさん：「Zさん、... is your... sister... 独身？」
Zさん："What?"
Cさん：「... your sister... 独身？」
Zさん："I don't understand."
Cさん：「is she... ah! シングル」
Zさん："You know, 99% of people over the age of 50 have the virus that causes Shingles already inside them."
Cさん：「ハッ」