It seems very unlikely that anyone, especially Hank would not smell all the gasoline that Ray is pouring out.
Tagline: "That's it! I'm going fishing!" - Hank
Hank wears a very authentic 'Bass Pro Shops' cap.
In the first breakfast scene the toast Hank butters disappears right away, and then in a later shot his whole plate has moved away.
The second time the guys are fishing, the blue part of Bill's beer can takes up almost the whole can in one section, then he moves his arm and it is the regular size.
Throughout the whole episode Dale's shirt turns from his regular brown one to a green one, and then back, within the same scene. It happens multiple times in various scenes.
When Hank gives Dale the "bait", Hank's house suddenly is blue when it is normally yellow.
"Jumping Crack Bass" - This is a parody of the Rolling Stones song Jumping Jack Flash.