It's because of all the crude oil they keep ingesting.
Couple's Daily Question Mug
Coffee Mug
He became enlightened.
They finally found something as smart as them to talk to.
Current events.
He went on furlong-er.
They Fallout
Because if you can't Helium or Curium, you Barium. (Heard it from Heimerdinger, League of Legends)
A: Because if you can't Curium or Helium them, you Barium!
None, they enlighten themselves.
They're all going to be 65 this year.
Neither did he.
This guy