Howard: *Check it out. Mrs. Davis from Human Resources is here. She’s probably on the lookout for sexual harassment.
Rajesh: Oh, great. There go my chances of being sexually harassed.
Howard: I heard here husband left her of a hot, young undergrad.
Rajesh: That’s so much better than the old ugly ones.
Mrs. Davis: Mr. Wolowitz, Dr. Koothrappali.
Howard: Mrs. Davis, nice to see you.
Rajesh: You know, I recently read a fascinating article on infidelity among penguins.
Mrs. Davis: Okay.
Rajesh: So if the fact that your husband left you makes you feel unattractive, just remember, penguins get cheated on, and they’re adorable.
Howard: It was better when you couldn’t talk to women.
*check it out: 当你需要跟别人说一件事情，或是让他看一个东西是，就会用上这句。意思是“跟你说吧”;“告诉你!” ;“瞧瞧”。