The story also implies that he knew of the Daleks before he "first" met them.
Certain stories also imply that he is somewhat resistant to cold temperatures (42).
He did not like what the Wizard's story implied about the man's state of mind.
Yet not all stories of the yew imply power or vitality.
They demand that he be arrested and held incommunicado, but the story implies that this does not happen.
The stories implied that the President had either a great deal to do with the problem or very little.
Finally, your story implies an opposition between enforcing the rules and offering social services to the homeless.
Several stories imply that sucking of blood has occurred.
(The story thus implies that all the trouble has been caused by Laurie.)
The story implies that the effect when seen from the outside is similar to spiritual possession.