Mobs engage in unexpected behavior when players log off, such as creepers playing sweet music and piglins getting along with wither skeletons.
Endermen take relaxing baths and even build hot tubs when players are not around to witness their hydrophobic nature.
Piglins transform into zombies in the Overworld, but in the Nether, they get fancy with their parasols and even play video games.
Cows reveal their true form as advanced extraterrestrial beings when players log off, flying around in UFOs and only disguising themselves as dumb farm animals.
Pillagers enjoy peaceful gaming sessions, like playing Emerald Dash, when players are not present to threaten or pillage.