Duncan was an engine that liked to complain, but Duncan also had a grumpy passenger that liked to always complain. All aboard and find out what makes .\rbr\rbrI do not own Thomas The Tank Engine! It is owned by HIT Entertainment and this video does not make or intend to make a profit. Air Date: March 10, 2015 .\rbr\rbrBubbling boilers! After getting a scolding for his grumpy behavior, Duncan resolves to ignore the cranky passenger and get on with being a really useful engine.\rbr\rbrBubbling boilers! After getting a scolding for his grumpy behavior, Duncan resolves to ignore the cranky passenger and get on with being a really useful engine.