As further evidence of Michael's ineptitude, he has the Italian flag (green, white and red) on his desk rather than the Irish flag (green, white and orange) to celebrate St. Patrick's Day.
Dunder Mifflin truly went all out for St. Patrick's Day- if you look closely at the background in some scenes, you can see that they even dyed the water in the water cooler green!
The show planned on going to Scranton for this episode to film at the St. Patrick's Day parade. The city of Scranton agreed and the Steamtown mall even offered to take care of the security. It eventually did not go through and not a single The Office US episode was ever filmed in Scranton.
The previous episode ends with Michael smoking a cigar. The beginning of this episode opens to two No Smoking signs.
The song Dwight puts on ('Cats in the cradle') tells the story of a dad who misses all important moments of his sons life because he is away for work.