During the dinner scene with the whole family plus Abe and Homer's mother: Abe and Bart both suddenly have cups they didn't have in the wide angle shots, Lisa's cup changes to the other side of her plate without her moving it, the orange phone on the wall end next to the fridge disappears, Marge and Maggie's cups disappear when Homer answers the phone; and when the F.B.I. burst into the house, Abe -- who was sitting across from Marge, is now sitting across from the empty space next to Maggie (which wasn't there in wide shots; Lisa had been across from Maggie).
When Carl says 'Hey Where's Homer how did he get out of this?" he is stood to the left of Lenny filling the rubbish bag however in the next shot as Homer starts shouting from the top of the waterfall, Carl is stood in a different spot to the right and a different man is stood to the left of Lenny.
In an overhead shot, a tombstone say "Simson". It other shots it correctly says "Simpson".
During the dinner scene with the whole family plus Abe and Homer's mother, we can see an orange pigtail cord phone next to the fridge on the wall end, yet when the phone rings and Homer goes to answer it, he answers a green pigtail phone on the other side of the door arch on something not seen.
Antibiotics wouldn't do anything to smallpox, as it is a virus.
After 27 years on the lam, Mona Simpson would no longer have to evade law enforcement as the statute of limitations for her crimes would have passed long before. Response: The Simpsons is not set in one particular state. Not all states have a statute of limitations.