The $600-a-bottle scotch brand name, Glen McKenna, is made up. The creators thought it best that way, to avoid legal issues. It is named after Chris McKenna, a writer/producer who has worked with the shows creators.
The mother wears driving gloves, just like Ted
This episode guest stars Andrew Rannells. Eight months after it aired, Rannells replaced Neil Patrick Harris as Hedwig in the Broadway show, 'Hedwig and the Angry Inch'.