TamePrevention
Prevents players from taming EliteMob entities (e.g. WOLF-type bosses such as Snoopy).
Wolf-type elites are kept angry/targeted by KeepNeutralsAngry, but vanilla still allows a player to tame a Wolf with a bone during the brief window in which the wolf has no target (e.g. right after it kills its current target, before KeepNeutralsAngry's 1-second poll re-asserts a target). Taming fires EntityTameEvent, which nothing else cancels, so the boss would become a player pet.
This is safe for the Summon Wolf enchantment: summoned wolves are made owned via Wolf.setOwner(...), which does NOT fire EntityTameEvent. Only the player-feeds-a-bone tame path fires this event, which is exactly what we want to block.