Plot
Sheldon struggles to do projects with Amy, Leonard, and Howard all on the same day. Bernadette goes back to work after her maternity leave ends.Tropes:
- Halfway Plot Switch: The episode starts as a Two-Timer Date plot with Sheldon working on two projects at once. After this he starts getting sick, seemingly leading into a Sick Episode plot... until he overdoes it with the cough syrup, which makes the episode veer into the What Did I Do Last Night? territory.
- Two-Timer Date: Sheldon does a variation, going back and forth between Leonard and Howard with the guidance system and Amy with her research. He ends up getting sick and going on a cough syrup-fueled bender during which he loses a notebook with confidential information at a cowboy bar. Lampshaded by Penny.Penny: Aw, looks like someone invited two dates for nerd prom.
- What Did I Do Last Night?: Sheldon wakes up after taking cough medicine and finds that he's naked from the waist down, and has lost a notebook full of confidential information about the guidance system. He finds it at a cowboy bar, where he also told everyone there about the guidance system.
