https://www.bbc.co.uk/news/world-us-canada-50619952

A 65-year-old American man who rigged his home with a booby trap to keep out intruders has been killed by the device.

Ronald Cyr called police in the town of Van Buren in the state of Maine to say he had been shot.

Police found a door had been designed to fire a handgun should anyone attempt to enter. Mr Cyr was taken to hospital but died of his injuries.

[...]

There have been other cases of booby-trapped homes in the US.

In February, a team of real estate investors walking through a home they had bought in Philadelphia discovered that a staircase had been rigged with string which, if tripped, would have triggered a swinging knife.

In September last year, a man in Illinois was killed when he opened a neighbour's shed that had been rigged to fire a shotgun. William Wasmund, 48, was found guilty this September of first-degree murder and aggravated battery.

And in October last year a man in Oregon was charged after fortifying his home "like a scene from Raiders of the Lost Ark".

FBI agents found a circular hot tub linked up to a tripwire, a fortified front door, animal traps and a wheelchair rigged with a shotgun that went off, hitting an agent in the leg.