The cereal question
Frank hits Dennis’s car. The dispute turns on whether Dennis should have been eating cereal behind the wheel.
Supporting source ↗CASE FILE · S08 E10

Court is in session at Paddy's Pub as Frank and Dennis present their cases to the rest of the gang, resulting in a verdict that will change their lives FOREVER...but not really.
THE SHORT VERSION · SPOILERS AHEAD
Frank hits Dennis’s car. The dispute turns on whether Dennis should have been eating cereal behind the wheel.
Supporting source ↗Mac builds a voting meter. Charlie introduces Frank’s certificate denying that he has donkey brains.
Supporting source ↗The group abandons the collision to debate Mac’s credibility, evolution and the authority of scientific evidence.
Supporting source ↗A driving demonstration ends in another collision. Everyone shifts the repair bill to Dee.
Supporting source ↗THE EVIDENCE
Charlie holds Frank’s certificate during their defense.Source ↗
Dee stands to make her point at the improvised hearing.Source ↗
Dennis eats from a bowl while driving.Source ↗
Frank drives the second car for the demonstration.Source ↗
Tables and stools turn the bar into a hearing room.Source ↗
The stereo display identifies the cassette playback.Source ↗
Mac sets up a second board comparing evolution and God.Source ↗
Frank’s old certificate is submitted as evidence.Source ↗
The stereo plays Charlie’s recorded directions for Frank.Source ↗
Dennis’s green Range Rover is stopped in the street.Source ↗
Mac compares faith in the Bible with trusting scientific books.Source ↗
Charlie displays the institution’s certificate about Frank.Source ↗
Named gavels slide toward Frank’s or Dennis’s side of the board.Source ↗
The gang conducts its own hearing with opposing tables and a voting board.Source ↗
Mac’s presentation attacks scientists with pictures and insulting labels.Source ↗
Mac wears a bright yellow patterned shirt throughout the hearing.Source ↗
Dennis reacts after the driving demonstration produces another collision.Source ↗
Tags document researched occurrences, not every appearance. Read the research notes and attribution.