wizard_of_gore

Corrected entry: In the very last scene, when the guy's head is put in the microwave and exploded while he is still alive, this wouldn't work as microwave ovens do not work with the door open, as a safety precaution.

Correction: Early in the movie, Dr. Collingwood mentions something about "fixing the microwave" (or getting it to work again). It can be inferred that later on he modified the microwave to allow it to operate with the door open. In fact, on many older microwaves, it's not that difficult to do.

wizard_of_gore