I will only shake my finger at him, he said, and placed it on the trigger.

[Pogrożę mu tylko palcem – rzekł, kładąc go na cynglu.]

Stanislaw Lec (1909-1966) Polish aphorist, poet, satirist

Unkempt Thoughts [Myśli nieuczesane] (1957) [tr. Gałązka (1962)]
    (Source)

Alternate translation: "'I will just wag my finger at him,' he said, putting it on the trigger."