Tagline: "Aaaagh! Aaaagh! It bites!" -Bill
When at the picnic table Cotton is sitting beside a couple of his VFW buddies, but after Topsy tosses his bayonet to Cotton, Topsy is now beside Cotton.
When Hank and the family are approaching Cotton's table at the rummage sale, there are two empty knife sheathes and one sheathed knife on his table. In the next shot, there are 3 sheathes and 2 knives out of the sheathes.
When Hank's trying to convince his dad to let the Vietnam vets join the VFW, the table behind him with the bowl of fruit and the vase of flowers on it disappears between shots.
Bobby and Boomhauer do not have any lines in this episode.
Dale mentions one of the things a falcon eats is a vole, but no one knows what it is. A vole is a mouse like creature, but a bit bigger.
Cotton: Get your war memorabilia here! All items must go! Amuse your friends and thrill the ladies with an authentic Nazi skull, priced to move!
Veteran: (about Hank) You mean to tell me that this bloodsucking goniff never served his country?
Cotton: 4-F. Got out on account of his narrow urethra! The only uniform he ever wore was the Boy Scouts.
Hank: I made it to Eagle Scout. And Dad, you know the war was over. Besides, I tried to enlist, but the army felt I wouldn't be able to relieve myself efficiently under duress, especially in front of others.
Peggy: I know a Vietnam vet. Dr. Sardi, my gynecologist.
Hank: They needed those guys over there?
Cotton: Vietnam boys? No got-dang way! The VFW stands for Veterans of Foreign Wars, not Reefer-Smokin' Losers!
(Talking about her visit to the VFW)
Peggy: They looked like little angels sleeping there. The smell was unimaginable.
The song that Peggy sings along to in her car is "Flashdance...What a Feeling" by Cara.
The Duke is the nickname of actor, John Wayne.
Diane Sawyer: She is an NBC anchor woman.
Episode Title: Unfortunate Son: The episode title is a reference to the Creedence Clearwater Revival song "Fortunate Son."