Minecraft wiki entry for Spider_Jockey, associated text: The skeleton turns and fires at any player in its line of sight, no matter the time of day (although the skeleton burns in sunlight, leaving the spider unharmed). A spider jockey can attack two different players in multiplayer - this is caused by one player damaging one half of the spider jockey and not the other. If the skeleton shoots another hostile mob, the mob attacks the skeleton but not the spider being ridden, even after the skeleton is killed. If the skeleton on the spider jockey is shot by another skeleton, it dismounts and leaves the spider to engage the skeleton that shot it.[verify]