Rajesh Koothrappali: You don't know what this little boy's gonna be like. Maybe he'll be rough and tumble, or maybe he'll be sweet and sensitive, or maybe he'll be all those things, like me.

Bernadette Rostenkowski-Wolowitz: You're rough and tumble?

Rajesh Koothrappali: You bet I am, b*tch. But I'm also sensitive and regret saying that.