I’m not sure about all the services, but I know the Coast Guard does not use Deep Fat fryers any longer they removed them from their ships and other shoreside facilities, maybe 10 years ago.
I also remember when I was a military cook and Bic lighters first came out there were cooks would put their lighters in their shirt pocket and after one or two of those Bic’s slipped out of their shirt pockets into the deep fat fryer KABOOM and they were pretty much banned from cooks and if they wanted to light there smokes they switched back to using regular old NAPHTHA fluid lighters.
I also remember when I was a military cook and Bic lighters first came out....
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Along those same lines, I was at a barbecue one time when a Bic starter was simply left on the small table that is part of the barbecue. After about 15 minutes of heating, it got hot enough that it exploded....
As for bad burns, one of my neighbors was doing so canning and spilled a bunch of boiling water on himself. He didn’t go to the hospital for any treatment and died a few days later from sepsis.