The Manufacturer’s Instructions Were Unclear
There were only two possible causes for this situation—defective wiring or blatant incompetence. We don’t really have any pity if it’s the latter, but since we can’t just assume it was the person’s fault, we’ll simply say it was bad wiring because that seems more appropriate for this list.

Source: Imgur
The machine’s door is open, which indicates someone opened it either before or during the incident. Perhaps this needs a bit more investigation. Someone get us the yellow tape. If anyone had their clothes in there, they would certainly wish they hadn’t done their laundry that day.