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Don't be Silly, Billy

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"He thinks you're a bossy boiler, me hearty."
— Salty
Don't be Silly, Billy

Steve Asquith


Simon Spencer


Sharon Miller


Michael Angelis
Michael Brandon

Air date

September 9th,
2007 (UK)
October 20th,
2007 (US)
December 13th,
2007 (AUS)

Previous episode

Thomas Sets Sail

Next episode

Edward and the Mail

Don't Be Silly, Billy is the thirteenth episode of the eleventh season.


Thomas is asked to show a new engine, Billy around. Thomas warns Billy to stock up on coal and water, but Billy calls him bossy and races off to do his first job. Thomas sees Billy collecting chickens from the farm, but Billy puffs off too soon and the chickens are not loaded. Thomas then finds him at the quarry, but Billy leaves as soon as he sees Thomas. Thomas then finds him at the coaling plant and tells him to take on coal and water. Billy is furious and calls Thomas bossy again. He then accidentally pushes Percy underneath the coal loader. An exasperated and exhausted Thomas tells Billy to do it his own way. This greatly delights Billy so he sets off, but has barely moved before he's run out of coal and water. Thomas takes him to be restocked, the two finish the jobs without further mishap, and, at the end of the day, Billy thanks Thomas for helping him out.




  • The narrator says "Billy backed up to trucks of Diesel oil", but there is only one truck.
  • Brakevans should have been added to Percy and Billy's trains.
  • How can Billy pump his pistons and not go anywhere?
  • Diesel's face is falling off when he is at the quarry.
  • It is very unlikely that Billy would run out of coal and water at the same time.
  • Billy's crew should have known better than to let him run without coal and water. In addition, they should not have let him leave until his cargo was loaded.
  • If an engine runs out of water while the boiler is still heated it will cause heavy damage to the boiler, and the boiler will need to be replaced. In some cases the entire locomotive will be decommissioned.

In Other Languages

Language Name Meaning
Norwegian Dumme-Billy Silly-Billy
Japanese なまいきなビリー Cheeky Billy



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