In this episode, Sheldon finds himself living in fear of a mysterious predator who stalks him on his way home for his daily Yoo-Hoo. The twist? The "vicious" bully is actually , the six-year-old daughter of the Coopers' neighbors, the Sparks.

: True to his nature, Sheldon attempts to use logic and physics to solve his problem. He decides to learn Jiu-Jitsu , reasoning that using an attacker's own momentum is more efficient than raw strength. When that fails (and leaves him quite sore), he resorts to more extreme measures, like covering himself in bubble wrap for protection.

: In a classic move, Sheldon tries to hire his sister, Missy, to be his "muscle," offering her his life savings to deal with Bobbi. Missy takes the money but ends up befriending the bully instead. Where to Legally Watch and Download S01E17

: If you prefer physical copies, you can purchase DVDs of the series through online retailers like Amazon.

: You can watch Young Sheldon on the CBS website or through their mobile app. They usually offer full episodes, including S01E17, for streaming.