The Loobenfeld Decay
![The Loobenfeld Decay](/./images/uploads/2/945723b161370de6d56502.jpg)
The Loobenfeld Decay
Season 1, Episode 10 - Aired March 24, 2008
When Leonard lies to Penny to avoid having to see her perform in a musical, Sheldon becomes concerned with the flimsiness of Leonard's lie. Sheldon constructs a much more elaborate lie which leads to the appearance of a fictional cousin.