The most destructive and deadly weapon of all is not an antimatter bomb. That place goes to a Human with ductape, a Multitool, a Target and no reason to not do it.
Or to care for his safety. -- Anon Guest
Humans have a lot of sayings concerning revenge. This should be enough warning for most species, but there are always an unfortunate few who are slow learners. Suffice to say that if your commanding officer decides to blast an isolated Human habitation without first checking that the entire familial collective is there, your best option is immediate and swift mutiny. It's the only way to be certain you and your crewmates survive.
Revenge is a dish best served cold, they say. If you seek revenge, first dig two graves, they say. An eye for an eye, they say. There are even cute little cards with cute cartoon figures and legends like Revenge means never having to say "I forgive you." If all of that isn't adequate warning, nothing will be.
Such as it was for the CEO of PlanMynCo vessel Exploiter, Yarbin VanDerReck. He saw no reason why a small family farm in the middle of nowhere should stand in the way of the Exploiter's rights to mine a large deposit of rare earth minerals. He destroyed the farm, and most of the family who lived there, unaware and uncaring that this was one of the even rarer depositories for active members of Pax Humanis.