Microwaves are used to cook people, too. Both intentionally, and accidentally.
On the intentional end is the Active Denial System, dreamed up by the evil scientists at one of my prior employers. Basically, a 100 kW transmitter operating at 95 GHz through a highly-directed antenna array, it will burn skin at distances of almost a half mile. The high frequency was chosen for the opposite reason of the microwave oven, as it will excite water molecules only on the surface of the skin, without causing internal organ damage.
Active Denial System - Wikipedia
For those who don't already know, the first resonant frequency of the water molecule is a little above 22 GHz, and microwave ovens operate down at 2.45 GHz, for better penetration. The ADS system uses 95 GHz for precisely the opposite reason, very fast decay of the signal as it propagates through your skin.
On the accidental end, a man was killed at a military base in the UK, by one of my customers operating an outdoor electromagnetic compatibility test site. Without going into the details, a man found himself out on the test range while someone was operating one of our large amplifiers (10's of kilowatts constant power), which succeeded in cooking is liver, gonads, and pretty much every other high-density organ, to some degree. He died a day or two later.
In another incident, my mentor as a young engineer managed to cook his arm while resting it on something called a slotted line, used for testing the source/load match between an RF or microwave amplifier and the load. He had his arm resting on the line, covering the "slot", and kept smelling chicken. All the while, he's thinking to himself, "who the hell is cooking chicken in the lab?" Much damage was done, before he realized the chicken he was smelling was actually the muscle in his arm being cooked from the inside out. He claims he never felt a thing, but you can just imagine how bad the burns were, if he was smelling himself cook!
