That would be surprising. Building small fusion reactors is neither illegal nor unheard of as a hobby: https://fusor.net/ https://fusor.net/ Unsurprisingly, do

That would be surprising. Building small fusion reactors is neither illegal nor unheard of as a hobby: https://fusor.net/ https://fusor.net/ Unsurprisingly, doing so is hazardous. The process involves high voltage, and if successful, emits X-rays and neutrons.