Raj Koothrappali : [surprised to see Howard on his doorstep] I didn't think I'd see you until tomorrow.
Howard Wolowitz : I know, but Bernie is kind of under the weather and my mother is kind of... under my dentist.
Raj Koothrappali : Wait, so your mother is sleeping with your dentist?
Howard Wolowitz : Former dentist, actually. I need a new one, now that I know where his hands have been.
Howard Wolowitz : [as he steps out of the plane, he is met with a crowd chanting "Howie!" - for Howie Mandel, who is next to him] Thank you, it was nothing really.
Howie Mandel : I think they're here for me, Ringo.
Chauffeur : Mr. Mandel, I'll be your driver.
Howie Mandel : Thank you. Can you believe that guy was telling everyone he was an astronaut?