"alien crickets" a very specific sound you have used for many things, but generally with the theme of "danger" (especially when applied to historical contexts) are you currently using alien crickets for contexts other than danger things are bad, and are you worried that its association with danger from previous projects taints its effectiveness in new and future projects?
i use it based on the way it sounds. the sound is a sort of harsh sound, a light high pitch screeching. i mainly use it in places where that type of sound makes sense. i think "danger" is a bit different, that usually requires lower pitches. for example the united states entrance into japan, in 'history of japan.' alien crickets is usually used in situations that are a bit different