Tempting Fate/Oral Tradition/Folklore

Examples of in  include:


 * Many professions have superstitions designed to avert and/or subvert this trope, such as stage performers' traditional well-wish of "Break a leg!" (because telling someone "You'll be fantastic!" is Tempting Fate), or sailors' reluctance to call "lifeboats" by that name (so Fate won't put its accuracy to the test).