The other fun part is where you have the massive energy cannons, fire them at a target, and miss
Hopefully your guided weapons have multiple fail-destruct systems on them, so you don't have to worry about a missile hitting someone after the war is over, and killing them. Kinetics will always be a problem
, while energy weapons might dissipate.
Let alone the ship's exhaust
being a potential navigation hazard.
Star Trek is where a person could buy an old Klingon Bird of Prey, pick up a few photon torpedoes, and use them as WMDs against colonies. Cloak, approach a colony, and fire off a shot at the main city. Repeat as you desire, then dump the BoP into some other sucker's hands.
Star Wars has small craft that have their obscenely high FTL speeds. A slight miscalculation, and you can slam into a planet anywhere in the galaxy. This means planets have to keep shields up to avoid splats, or Interdictors 24/7 so anyone who doesn't drop out in time, is forced out in time. Backups to both become necessary.
Babylon 5 has the independant transports, but anyone approaching the station has to surrender control to the station's computer.
Hard scifi would have specific rules about when and what vectors you can use to drop garbage. Descending orbits are preferred, so they land in the sun and burn up. Dumping cat litter on an opposing course to another ship is frowned upon, especially if the cat added a few extra 'projectiles'.