He seals off the family garage with plastic sheets, creating a "germ-proof hedge of protection".

When flu season hits Medford, Sheldon’s severe germophobia is triggered by a teacher sneezing in class .

"Sheldon!" George barked. "Drop it."

"I... I improved your equipment, Father," Sheldon said, bracing for the lecture. "I used my own money. I purchased a high-fidelity diamond stylus."

Sheldon walked away, his shoulders slumped. He wandered next door to Meemaw’s house. She was the only one who appreciated his eccentricities, mostly because she found them funny.