PlotWhen Leonard and Stephanie's relationship starts moving too fast for Leonard's liking, he turns to Penny for help.
- Failed a Spot Check: Leonard denies that Stephanie has moved into the apartment, even as Penny points out all the stuff of hers in his room. It's only when he can't find his Bat-Signal replica that it dawns on him.Leonard: Don't you think if a woman was living with me that I'd be the first to know about it?
Penny: Oh, sweetie, you'd be the last one to know about it.
- Hypochondria: Sheldon complains to Stephanie about a droning sound in his ear. Stephanie finds nothing wrong, but takes advantage of the situation by pretending that he has something in his throat and needs to be quiet for a week.