Sometime little aperçus want to squeeze themselves into the story. Generally I close the door. But not always:

Some people are real good listeners, have an active way of doing it, as though a kind of ear magnetism is pulling the words right out of your mouth. Others are only listening for some sort of cue so they can jump in and take over the talking themselves.

(from Mrs. Plansky’s Revenge, digitally on sale at $2.99!)