"It's Not Covid, I Swear."
A Christmas Carol.
Oh, look. It's your coworker. He comes into the break room. He sneezes into his hand. He opens the fridge.
He pours himself some coffee. Yes, with the hand he just sneezed into. He sees you looking at him.
"Don't worry, it's not Covid."
An awkward silence...
"I swear."