Michael states that he went to an Alicia Keys concert at the "Montage Mountain Performing Arts Center." The venue that he was talking about was actually known as the "Ford Pavilion" in April of 2006 when the episode was shot. The Pavilion in Scranton PA was known as the "Montage Mountain Performing Arts Center" at one time, but only while it was a temporary facility from June 1994-September 1999.
Michael states he got a contact high at an Alicia Keys concert. During the spring of 2006 when this episode aired Alicia Keys had no concerts scheduled.
In the break room scenes, a silver-haired woman in a red cardigan with glasses can be seen (twice) through the doorway which leads out to the annex. She looks as if she might be one of the "extra employees" that featured in Season One - along the lines of fired employee Devin - but those "extras" were phased out by early Season Two.
Hank the security guard's name tag says "Tate" but his name is Hank Doyle.
Michael makes a list of illegal drugs (Crack, Cocaine, Pot, Blow, Acid, Hookah, Heroine, Speed) and misspells heroin.