I've seen it happen several times, someone will ask how to build a railgun, or how to charge large capacitors to high voltages while demonstrating a level of skill and attention to safety that can only be described as (to be polite) "here, sign this disclaimer, this is your problem now, I'm out of the legal blast range now."
Same story with the guy who puts an isolation transformer on his scope and uses a totally standard probe on non-isolated mains-powered stuff. Sorry, can't find a link at the moment, but it was definitely there a few months ago. Also the guy was a teacher, I remember. Wow.
So, I was kinda baffled by the absence of a "kill yourself" tag, or should it be "suicide"? There is an "electrocution" tag but it seems to only be used in questions from people who actually worry about safety, which is obviously not the same...
Thus, next time someone wants to build a fibrillator (it's the opposite of a defibrillator in case you wonder) what should we tag it with?
I'm torn between "killyourself" and "darwinaward" myself.