Do-Nothing Dennis is a magazine story.
Dennis is given the job of taking some flowers, of which part of the route goes through a meadow. But, being the diesel he is, pretends to have hay fever so he doesn't have to work. Oliver ends up having to take the flowers instead. As he passes through the meadow, he sees some painters. When they need something to paint, Oliver decides that Dennis would be the best engine for the job.
- In the last Illustration, Dennis's steel wheels and siderod are painted gold rather than grey.