Percy, Narrator and others in “Toby's Tightrope”

Cheer up, Mavis.

Mavis was still remembering the trouble she'd had with trucks.

[about her previous troubles] Manager says I don't listen to his advice. He says I've no business jauntering down Toby's line. Toby's a fusspot!

Toby has forgotten more about trucks than you will ever know. You must put the trucks where he wants them, then you'll be a Really Useful Engine. Now, if you'll excuse me, I have to take these stones to the harbor.