I have a lava farm (with 3 dripstones and cauldrons) and I have my minecraft house near a village. Well, recently I have been placing some beds in the village to increase the villager amount, but the unemployed villagres try to reach the lava in the top. There is always one there, but at night. The last villager has died killed by a zombie, and a new one has come and replaced it. Here I attach an image