Continuity mistake: There's a tiled patio at the back of the house with a total of twelve large tiles, but when the house goes down the sinkhole there are sixteen tiles in total. Plus the fact that when Bart's on the roof hanging from the gutter the tiles below are white (they also appear white when the house falls into the sinkhole), but when the dome is placed over Springfield the tiles are brownish-orange.
Continuity mistake: There's a water spigot under the window on the wall at the front of the house, near the garage door, which can be seen after the lake is blocked off, but this spigot didn't exist right before Bart skateboarded naked, then it vanishes again and reappears during the fire.
Continuity mistake: When Homer says "I'll let you hold the bomb" to Bart, the timer on the bomb is in the right corner of the bomb. Every other shot of the bomb shows the timer in the middle of the bomb.
Continuity mistake: Cletus is shown on a roof attempting to distract Cargill as the group was trying to climb the rope, and is still there when Cargill turns off the transmission between Springfield and Cargill. Yet when Homer says "I can't do anything right" a few minutes, Cletus is suddenly shown in the background behind Homer.
Continuity mistake: The shot where Homer kicks the bomb shows a group of people a few meters behind him. A few shots later, they are suddenly right behind him.
Continuity mistake: When Cletus goes to distract Cargill, a crowd of Springfield citizens go to place the KBBL news tower next to the rope so they can climb up it. They are all on the ground when Cletus starts talking to him. Cletus then says "Look what I can do with my thumb" and the crowd is suddenly half way up the rope with no time to do so.
Continuity mistake: When Homer squirts the super glue on his hand, he throws the glue container on the floor behind him. When he starts to climb up the wall, the glue's container has vanished from the ground.
Continuity mistake: After the title card "Immediately" is shown, Homer is lying unconscious in the snow. Next to Homer's hood is an extra amount of snow rest next to his ear. Next shot, the extra snow has vanished.
Continuity mistake: When Homer puts the video in the VCR player, as Marge says "Homer", outside the window shows a dark sky in the background. Marge then talks for a bit and the shot returns to Homer saying "Way back." Outside the window suddenly shows a background that is partially brighter and raining.
Continuity mistake: After the Alcoholics Anonymous meeting runs out of the church, Barney starts yelling and a huge crowd is visible behind him. Bumblebee Man is standing a few meters away from Barney on the end of a row. Next shot, Otto and Moe have suddenly appeared next to him as well as a huge crowd.
Continuity mistake: When the Alcoholics Anonymous run out of the church, Barney yells out "I can't take another minute in this dome!" and charges towards the dome. In the overview shot, the church is directly behind Barney. In the following shot that shows Barney hitting the dome, the background has changed completely. The church is no longer there and two houses have suddenly appeared.
Continuity mistake: When the two deer enter through the cabin window to help Homer and Marge, a trail of snow is visible behind them and in front of the window. In an instant close-up of the smaller deer, half of the snow has instantly melted and vanished. Then all the water has vanished and it's just snow. Then a few shots later, the snow vanishes completely.
Continuity mistake: When Marge and Bart are at the counter at the gas station, the first shot of them at the counter shows the strap on Marge's bag facing behind the bag. The shot then changes to Bart using his slingshot, and Marge, visible in frame throughout the entire shot, is never shown touching the bag, but when the shot cuts again, the strap is suddenly in front of the bag.
Continuity mistake: When the Simpsons are at the gas station, Marge congratulates Bart on being sober for 24 hours. The Buzz Cola can next to Bart has the logo facing front ways. Bart then aims his slingshot which cuts to a shot from behind them and the Buzz Cola logo on the can is still facing front ways, despite the angle change.
Continuity mistake: When Homer slides down the rope hitting people off it he doesn't hit Lenny even though Lenny was on the rope before.
Continuity mistake: When Homer slides down the rope hitting people off it, Barney gets hit and falls to the side. A few seconds later the bomb falls down and Barney is standing up ready to catch it.
Continuity mistake: When Bart and Lisa are looking at the cabin from a hill, the cabin only has a shallow incline to the water, but in a later scene, when Homer goes to look for his family, there's a significant slope.
Continuity mistake: When the family are in Alaska, Homer comes in with logs and Bart claps his hands to get snow on him. When Homer says Lisa should clap too, his hair changes.
Answer: The family doesn't treat him very well, particularly Homer. He may have wanted some revenge on them. Grampa is also a little senile.
Phaneron ★