Ted: Look, my sister married a guy I didn't like. Sandals and socks? Come on, buddy. But I took her out, we celebrated. It was the right thing to do. You got to support him.
Barney: You're right, Ted. This is a cause for celebration. We need to take him out and celebrate the commitment he and Tom are about to make.
[cut to Barney and James arriving at a gay bar with Marshall, Lily, Ted and Robin:]
James: Yeah. This is where we're celebrating the commitment that Tom and I are about to make?
Barney: What? Yeah! See, that cage represents your commitment.