You don't because that is against the law. You either deal with it, or get a new job. You don't kill people just because they are annoying.
There are 7.5 million ways proven to kill a person but new unique ways pop up daily.
12 - 13 if you shoot it
There are many ways for a ninja to kill you but my favorite is classic kicking in of the face
StarvedDehydratedBeatingShootedGassedBurnedSuicideInjectionsIllneses
>avoid involvement with a non-worker and do your own job well<