The first law of thermodynamics states that a cold body must not warm a hotter body, nor through inaction, allow a hot body to become warmer.
@leonerd
Oh you can't pass heat from a cooler to a hotter
Try it if you like but you far better not-er
'Cause the cold in the cooler will get hotter as a rule-r
'Cause the hotter body's heat will pass to the cooler
Flanders & Swann, of course.