What's always intrigued me is why your jelly, of all things, would be the first thing to rescue should your doggone shack burns down. And why is it taken for granted in the song that everyone has a jelly on hand at all times on their premises, ready for rescuing? Surely very few people, then as now, would be likely to - I know I certainly don't. Even if I did it would be given a low priority for rescue in the unfortunate event of a conflagration. Is it an allegory, or a deliberate obfuscation of some kind? Some kind of euphemism perhaps? Or is he singing "telly"? I can't believe that's so as the damage caused to your telly by throwing it out the window would obviously defeat the object. Surely there's more to this than the simple piece of well-intentioned advice it first appears. What's going on? It's deeply puzzling.