Lily: [singsong voice] Oh, Barney's got feeling for a girl.
Barney: Yeah. Penis feelings. Because she's hot. Guys, as you know, I only have one rule...
Future Ted: [v.o.] Barney said this a lot.
Barney: I only have one rule: if you're gonna get it on in a Port-O-Potty, do it early in the day.
Barney: I only have one rule: Never screw over a girl whose last name ends in a vowel. 'Cause she's got brothers.
Barney: I only have one rule: Never date a girl with a hook for a hand.
[present:]
Barney: Never go out with the same girl more than once.
Lily: Then why are you going out with Nora again?
Barney: There is an exception.
Future Ted: [v.o.] And it was always the same exception.
Barney: ...unless she's hot.
Barney: ...unless she's hot.
Barney: ...unless she's hot. Arr!
[present:]
Barney: And she is indeed hot.