Jack Bauer's Corollary to Chekhov's Gun

The dramatic principle of Chekhov's Gun can be paraphrased as:

"If you see a gun in the first act, it should go off by the last."

To that, we can add the Jack Bauer Corollary to Chekhov's Gun:

"If you see a cigar cutter anywhere near Jack Bauer, someone's finger is coming off."