It's a lot more common that you didn't close it properly Just Now (and haven't gotten very far, and are maybe still in earshot) then the door spontaneously opening, especially with the slight negative pressure and magnetic gaskets.
(of course, where they're really useful is as office fridges, when the perpetrator wanders off oblivious but someone else gets driven mad by the just-barely-audible-beeping and hunts it down...)
