Today some people discovered that you can hit NPC's / Animals with the Truncheon to make them passive / follow you around, and we went about discovering which mobs are effected by this. Note, that mobs will stop following after a certain range, and reset, but this currently allows you to cheese some of the bosses, as once pacified, they become just meat shields to take damage.
To note, certain mobs this works really well, other mobs really bugs them out.
Hyena: Bugs out, broken back glitch, still follows passively
Crocodile: Bugs out, broken back glitch, still follows passively
Spiders (Normal): Will follow you around passively
Spider Boss: Broken back glitch, still follows passively
Little Dragons: Mix of broken back glitch and normal passive following
Skeletons: Will look like they are knocked out, and will follow you passively while sliding on backs.
Ostrich's: Will follow passively
Turtles: Will follow passively
Rocknoses: Will follow passively
King Rocknoses: Will follow passively
Rhinos( All variants) will follow passively
Scorpions: Follow passively