Strong antagonist is going to kill the hero (a person or a weak animal). Another person or animal pretends not to know about the situation and tells that the antagonist is in search to be killed. The hero is saved. Usually the latter asks the man not to give him out and answer that it is a stump, a log and the like near him. This opens possibility to treat the antagonist as a corresponding object (to cut it with an axe, to tie up, etc.)