It is getting to the point that I just don't think lipo batteries are worth it.
The fire threat is certainly an issue, but I am thinking that even if your house survives a lipo fire, will it survive the toxic gas? Everything in your house exposed to the toxic gasses produced by a lipo fire will probably fail eventually because of the exposure to the toxic fumes. Just to mention a few, how about your furnace, washer, dryer, computer, television, stereo,electric switches and receptacles, lighting fixtures, all of your RC electronics and engines, all exposed metal surfaces, etc.
Just step back, and look at what we are talking about. We are aware of the dangers, but are still exposing our loved ones/family members to this unnecessary danger, just to satisfy our hobby addiction, when there are alternatives to lipo batteries for our power needs.

Greg