Tragic accident: Minecraft Adventure

So Today, I had a huge glitch. So You know how Zombie-Pigman Don't catch on fire unless they in lava? Well The Craziest thing happened, I walked into my house only to find that the whole thing had burst into flames until there was nothing left. The Pigman had lit the wood on fire and five months, 8 stories, burned to ashes. Not literally because ashes aren't possible in Minecraft. So For the next while, I am going to be rebuilding my house. I have to switch to creative to get all the wood...