They both laugh. For a moment, Sheldon isn't the weird kid. He's just a scientist talking to another scientist. The Cooper house. Georgie is trying to hide Mandy's pregnancy pillow while Mandy pretends to be "just a friend helping with the tires." Mary serves iced tea to Mandy's mother, who looks around suspiciously.
Sheldon hesitates. This is unusual.
Missy looks up.
"The mold on the lens actually improved the diffraction pattern." young sheldon s06e18 hdrip