The Hamburger Postulate
![The Hamburger Postulate](/./images/uploads/2/8284727c9b9546a6d995d4.jpg)
The Hamburger Postulate
Season 1, Episode 5 - Aired October 22, 2007
Leonard is seduced by Leslie Winkle but she only wants a one night stand. Leonard is concerned his dalliance with Leslie will affect his chances with Penny.