Talk:Voodoo Demon/@comment-4738651-20120107001041/@comment-4674838-20120107073910

People have reported that letting it fall into lava after killing a voodoo demon doesn't spawn Wall of Flesh for them, although I wonder if some of these reports could be due to the Guide being dead at the time (in which case obviously the WoF isn't supposed to spawn). However, WoF certainly can be spawned by killing a voodoo demon and allowing the doll to fall into lava (Guide dying as a result). I've done it on numerous occasions in patch 1.1 and 1.1.1.

In other words, no, the issue is still up in the air so far as I know. If you want to be absolutely certain not to spawn WoF accidentally, you should avoid killing voodoo demons when they're flying over lava to be safe.