1910’s-era movie theater etiquette Public Service Announcements (via 1,2)
Most early movie theaters had only one projector so “etiquette slides” were used to divert the audience while reels were being changed. These glass slides often featured lighthearted instructions for proper behavior while viewing a film.
Then there’s the time there was that mercenary who told Mal and the crew that he would hunt them down, find them, and kill them, to which Mal responds by kicking the guy into Serenity’s exhaust flame (or propellers, or something- THE POINT WAS HE KILLED HIM). I remember thinking, “Oh shit, that is the best response ever. You know if you let him live, he will try to kill you, so you don’t do the “noble” thing and let him live- you do the smart thing.”
An engine. Mal kicked a guy into an engine, because he is absolutely NOT putting up with anybody’s shit.