who is "you" in your post. your first sentence makes it sound like you think the owner of the device is at fault, but the second sentence makes it sound like the maker of the device should be held responsible. maybe unintentionally ambiguous?
"you" is the manufacturer of the device that bricks itself if touched wrong by arbitrary (untrained) personnel.
The owner has no way to know the thermal limits of some unknown internal switching component, and even if they have who says the radio signals are emitted by the owner?