I thought the whistling thing was funny.
Maybe so. Listening to someone else whistle is pretty excruciating. My whistling, by comparison, is always mellifluous and lilting; I have no idea why everyone leaves the room when I whistle...
Meanwhile, the bereaved mother (who is clearly suffering from mental illness) is no laughing matter. Suggest you trim out sad items like that in a humor post, lest someone think you're making fun of that situation.