We are taught in public school that the microwave oven works by causing water molecules to spin and gyrate. If there is no water in the microwave oven, the heating effect will be unpredictable and undependable. I assume they teach this in public school. They do teach this don't they?
Umm... not really.
These days it is not so much the factuality of the information, but how the student feels about it.
To be completely accurate about what they say about microwaves and water, they say that the microwaves 'excite' the water molecules.
*Sigh*
The jokes about fetishist water abounded in class.