I have just puchased Happy Holiday Stuff for TS2. I read on a thread ages ago that the trees included can catch fire if left on. Well I set the tree on fire. The Fire Department came and put it out, but it looks likes its still on fire. And the best part? Nobody gives a damn! They walk past it, no alarm and I can still interact with the item. But I can't go into build/buy or save. Any ideas?