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The gag often features the cartoon's antagonist rigging a piano key with dynamite when the protagonist is about to play Those Endearing Little Charms. Naturally, the protagonist skips over the key, and the antagonist tells them to try again; after the same thing happens once or twice, the antagonist exasperatedly shows them how to play the song correctly, resulting in them getting blown up.
|Cartoon||User (blown up)||Victim (unharmed)|
|Wile E. Coyote||The Road-Runner|
|Show Biz Bugs||Daffy Duck||Bugs Bunny|
|Ballot Box Bunny||Yosemite Sam||Bugs Bunny|
|Slappy Goes Walnuts||Doug the Dog||Slappy Squirrel|