Quote from Marshall in The Broath
Future Ted: [v.o.] Kids, as you'll recall, our gang had a subtle way of letting someone know they were making a mistake. [Robin hangs the "Intervention" sign as Marshall returns to the apartment] Lily: Where have you been? Marshall: Oh, worth it. Hang on. [Marshall attaches a "Quin" poster to the sign, so it reads "Quinntervention"] Marshall: You know we would've hated ourselves, right?