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Glad to hear you are calm, CW. I was concerned about you for awhile, especially when I read the bit about running engines indoors.

As to the number of engines I have that actually run, I must confess I am not sure. I'd say over two hundred but less than two hundred and fifty. Mostly glow but a dozen or so old ignition. I do have a few I have not run but I am confident I will remedy that.
I have never ruined an engine by overheating, but I have lost several to crashes. If your experience differs perhaps you are running too lean?

Now to your question about straw. I am glad you asked as you clearly are uninformed and may someday need to know. No one "needs" straw upon their roof, unless, of course one has a straw roof, as is common in some parts of the world. In my case, my home is surrounded by a form of vegetation known as "pine trees". (I also actually grow the trees on a farm) These trees form "needles" which as they age and die turn brown and fall in the form of "straw". I suppose straw could become a fire hazzard. That is one of several reasons I periodically remove it from my roof.

This has been a most enjoyable exchange, CW. Thanks

jess