The Doctor in “Terror of the Autons”

[working on his TARDIS console, singing] I don't want to set the world on fire... [BANG! Smoke comes out of the TARDIS door, followed by the Doctor carrying a piece of dematerialization mechanism. He goes to the lab bench and places it in a device clearly designed to hold the three legged item. There is a knock at the door.] Not today, thank you.