Luke not having a proper jacket for Martha's Vineyard when he's lived in that kind of weather all his life (where's his Army jacket?)
Luke never having lobster.
Lorelai's foot breaking through the porch floor because of termites.
Kirk running out of the Dragonfly Inn (pre renovation) because he saw a mouse
Kirk running out of the Dragonfly Inn naked because of night terrors
Logan and Rory jumping off the scaffold holding umbrellas
Luke playing golf ... badly.
Luke bonking his head in the oven
Kirk pulling the girls in his pedi-cab