I’ll go first. Mine is the instant knockout drug. Like Dexter’s intramuscular injection that causes someone to immediately lose consciousness. Or in the movie Split where there’s the aerosol spray in your face that makes you instantly unconscious. Or pretty much any time someone uses chloroform.
Watch Mad Max Fury Road “theatrical” release then watch the original or director’s cut. I watched the original in theaters the day the movie came out and loved it! But I rewatched it on streaming and thought I was going crazy with the Tom Hardy narration they added in the begin and end. I was like, was that added between the time I watched in theater and now? Looked it up and the production company forced them to add the narration a couple weeks into the release. Apparently an executive couldn’t follow the story without Max telling him. Shows that the people in charge don’t always know what’s best.