I'll have to lay claim with you on the saw cuts, too. I've never been cut either by a moving chain. Your comment about the magneto brings back a funny memory.
One very rainy day I was falling down on the South Toutle river. I was raining harder than a cow peeing on a flat rock. I was running an 090 with a 50" bar. As my choice of saw dates me, this was before the days of nice, light, fast, powerful polymer saws.
Anyway, I had an older gentleman bucking for me. He had a belly like a bowl of jello and no teeth on his upper jaw. Great guy and when he laughed everything shook.
That 090 had a spark plug cover that had been ripped and you had to be careful not to touch it. As I said, the only way I could have been wetter is if I'd been bigger.
Apparently my chain must have been getting a little dull because as I was putting in a face cut in a nice fir I had to push on it to get where I needed to be. I stepped up to the saw and applied pressure not thinking about that plug cap. That thing lit me up like a Christmas tree. My pardner just stood there and bounced up and down laughing so hard. Those 090s packed a powerful spark for sure.