Throwing enderpearl into Nether Portal teleports user to coordinates of the Nether Portal in the other dimension in the dimension they're currently in.

Interrupting the Enderdragon respawn right after all the crystals are created causes the beams to shine upwards without spawning a dragon.

Attempting to eat food when not hungry causes item in hand to go down and up

Rendering signs from 1.8 causes player to crash.