Jiu-jitsu, Bubble Wrap, And Yoo-hooyoung Sheldo... Today

The episode centers on Sheldon being terrorized by Bobbi Sparks, the six-year-old daughter of the neighbors, Herschel and Brenda Sparks.

George Sr. (played by Lance Barber ) admits he was once a bully, a meta-nod to Barber's previous guest role as Leonard's high school bully on The Big Bang Theory . Jiu-Jitsu, Bubble Wrap, and Yoo-hooYoung Sheldo...

He attempts to practice on his friend Tam, but his lack of physical strength makes his "inertia" moves completely ineffective. Key Themes and Trivia The episode centers on Sheldon being terrorized by