MacLaren's; Exterior: Robin, Lily and Marshall all smoke outside the bar as Robin rants that of course people watch her show -- like her good friends Marshall and Lily -- who so do not. Robin's offended when she realizes they still haven't seen it, but she's woman enough to admit that even her stalker Leonard won't watch it.
MacLaren's; Interior: Ted and Barney can't believe the rest of the gang is all smoking outside. We flashback to a smoke-filled (I mean -- like The Fog) MacLaren's as the two reminisce about the days when you could smoke in a bar. Great sight-gag. My favorite part is when Marshall tries to find them by calling "Marco," and they answer "Polo." Back in the current day, Ted laments the fact that they're splitting up into smokers vs. non-smokers and it's just not healthy. Barney agrees. So they do the reasonable thing -- they run outside and join the smokers. Cue Ted's kids in 2030: "WHAT?!"
Outside, when Robin pronounces the two guys "smokers," just like the rest of them, Barney tries to put on the brakes. "Whoa, whoa, whoa, whoa, whoa, whoa, whoa, whoa. I am not a smoker. I only smoke in certain situations: post-coital; when I'm with Germans (sometimes those two overlap); coital; birthdays; to annoy my mom; pre-coital; on a sailboat; the day the Mets are mathematically eliminated every year; and, of course, wait for it -- 'cause Lord knows I have -- pregnancy scares." Ted asks why he's smoking right now. Barney inhales. "I'm always pre-coital, Ted." Duh. Lily rationalizes that at least they're out in the fresh air. Barney adds that his smoker's cough is working his abs. As the gang dissolves into a coughing fit, Saget!Ted narrates that within a week, they all hit their breaking point.