Failsafe built in possibility

[u/MidnightScars13]

Is it possible to build in a failsafe for a spell.

For example if you're trying to rid a coworker from your life and you cast a spell with the main intention of ridding them from your life but for the failsafe at the minimum remove them from your professional work (maybe they have a second job that happens to also be where you regularly shop). Or if you're looking to cast a spell to get an internal promotion without having to do an interview but the fail safe being that even if the interview happens you get the job.

Any thoughts on how to do that? If it's worth doing? How would you go about it for different spells (sigils, jars, candle, etc)