I saw that the other morning and thought " oh man, that would REALLY suck."
Years ago I had probably 30-40 lbs going on a fish cooker in the back yard. I was set up in the shade of the house just past the edge of the roof. All of a sudden, we had a downpour come over from the off side of the house. Just one of those splash and dash types that roll across during early summer on the gulf coast. All I could do was shut the burner off and take cover.
If it hadn't been so scary, it would have actually been pretty. The water coming off the roof was rolling right into the hot lead pot, causing it to explode like Kīlauea throwing silver spray everywhere in a 10' area around the pot. It seemed like it went on forever before the pot cooled down to just a steaming cauldron. In actuality it probably only lasted a minute or two, but the panicked thoughts of "OH CRAP what do I do" were in overdrive.
I had set up on a piece of plywood which received the majority of the fall-out but it took an hour or more of picking up strings and pieces from around it that had been blown skyward. That on the wood peeled off like a weird spider web.