'Do I Know You?' - Season 4, Episode 1
With Ted and Stella now engaged, Ted begins to worry he doesn't know much about her. Meanwhile, Barney confesses his love for Robin to Lily.
Air Date: September 22nd 2008.
Lily: Ask her something!
Barney: (Talking on the phone to Robin) How are you feeling today?
Lily: Something personal!
Barney: At what age did you first get your period?
Ted: What are you doing down there?
Marshall: I'm making sure my best friend is marrying the right girl!
Ted: Why the hell are you hiding behind the couch? You need to get a job.
Marshall: I really do, don't I
Barney: On a booty call you barely even have to talk. At 9:00PM you say, "Hey, babe, it's Barney. Are you busy tonight?". Girl answers: "Sweet, see you in a half an hour, can't wait." But the later it gets, the fewer words you need. "Barney! Busy? Sweet." And by 3:00 in the morning: Barney texts "?" and random girl answers "!".
Barney: Bimbos make me happy. Bimbos make me feel alive. Bimbos make me want to pretend to be a better man. This whole thing with Robin was just a fling, but at the end of the day, my heart belongs to bimbos.
Barney: It's like a disease. I slept with Robin one time, and I caught feelings—I caught feelings bad. I used protection and everything.
Barney: (After calling Robin and leaving a weird sound) She wasn't there. I left a voice-mail.
Lily: You left a voice, but it wasn't male.