Stranger: Do you know why firetrucks are red?
You: Nope
Stranger: well, firetrucks have 4 wheels, and 8 people on firetrucks.
Stranger: 4+8=12.
Stranger: there are 12 inches in a ruler.
Stranger: Queen Elizabeth was a ruler.
Stranger: there was also a ship named after Queen Elizabeth.
Stranger: the ship sailed the seas, and seas have fish.
Stranger: the fish have fins.
Stranger: people from Finland are also called fins.
Stranger: Finland and Russia were in a war a long time ago.
Stranger: Russians are red.
Stranger: and firetrucks are always Russian around.
You: LOL