Some additions:
- It is trivial (and preferable) to shoot an armed person in the hand to disarm them, and to shoot someone in the legs to disable them rather than killing them
- Guns never need maintenance
- Warning shots are kosher
- Police must wait for you to fire before they can consider you an "armed threat"
- Any gun shot wound that isn't immediately lethal can be essentially ignored (or covered with a bandage) until post-battle attention by the local medic; surgery is never required except in the case of head wounds (which always turns out okay or results in the affected character gaining savant powers as their brain heals) -- you can just walk it off
- Careful aiming is for snipers; there's no need to bother lining up a shot with a handgun, pistol or rifle
- Crossfire never happens -- it's perfectly safe to surround someone on all sides with weapons drawn and fire if they mouth off too much
- Holding a gun makes you scary looking and invulnerable in civilian contexts no matter how incompetent you are or how shitty your trigger discipline is
- "What is trigger discipline?"
- Gunfire is really quiet; hearing protection is just "look-tuff" LARP nonsense they use at gun ranges to look cool
- People don't have much blood in them
- Openly carrying a weapon in liberal areas is perfectly safe, never alerts or alarms people, and never results in law enforcement challenging or questioning you
C'mon everybody! Add your own! There's no end of dumb shit liberals believe about guns!