This lipo smoked a lot, but from where I was I couldn't see any flames. Modern lipos aren't nearly as volatile as people think they are. If he tries to use those as they are they will work fine, I've seen it before. If he pushes them hard enough they will puff up and if he continues to push them beyond that they will likely start puffing smoke. You have to really be trying to get a lipo to blow up to get one to catch fire. I shot that one repeatedly and all it did was smoke.
All I ever wanted was an honest weeks pay for an honest days work.