Ok so this is what I got. 5 lipos and 2 NIMH batteries. I bought a cheap lipo bag off eBay and found out after some research it was fake lol so I bought a dynamite lipo bag too. I also have a small fireproof safe. If I put my batteries inside the cheap bag and inside the dynamite one (double layering it) and then put that bag inside the fireproof safe will I have to worry if one battery catches fire? If one goes I'm guessing all will go. I don't want to have to worry at all because my house is very nice and the last thing I want is for it to get cought on fire.