> internal burns This is a myth. Unless you mean something else, an unshielded microwave will heat your skin before it heats your organs, the same way it heats

> internal burns This is a myth. Unless you mean something else, an unshielded microwave will heat your skin before it heats your organs, the same way it heats anything else. Burned down, sure, but there's probably the same risk modifying any AC device.