Can't turn it on while the door is open / removed.
... now that's security.
Screwdriver in each of the holes where the door catches would go (has to be both as you have to operate both interlock switches), and you're fine...
...fine dust blowing across the floor if you happen to discover that those switches (used to) contain mains power and while it theoretically shouldn't be possible you managed to put the screwdriver in contact with phase...
Biting the hand that feeds IT
