1. If they have a suger cane/ cactus farm go into creative and build the tower to the limit, when they come back, break it in there face so all of it falls.


2. Set the spawn point in the midle of the air so everyone falls... be nice and put a 1 block 3 deep hole of water...... so they have to trust you and not move.


3. Randomly teleport to them or teleport them to you


4. Randomly kick people


5. Randomly stop the server