Robin: Wow. Go, Stan. Who is this guy?
Barney: He's a security guard who works nights.
Marshall: And he eats lunch at MacLaren's every day.
Barney: And he wasn't done.
Marshall: Not by a long shot.
[flashback to Barney and Marshall sitting with Stan in the booth in MacLaren's:]
Stan: You make me thank God for every mistake I ever made because each one led me down the path that brought me to you.
Marshall: That's, like, really nice, man.
Barney: [holding back tears] Whatever. It's okay.