Gamp's Law of Elemental Transfiguration had one notable exception, food cannot be created from nothing. However, no warning comes from enlarging said food.
Remus knew better than to stretch his chocolate supply with an Engorgio; it always tasted like chalk and never seemed to be as filling as double the chocolate should be, but, sequestered in his cottage for the Full Moon later that week, he really felt strongly against having to go fetch some more Honeydukes.
But, the engorged chocolate was just the tip of his proverbial shit iceberg.
The nest of bear-sized Nifflers rifling through his cottage, that had eaten his entire stash of chocolate and slept inside the cauldron he kept his chocolate in would be most of the shitberg.
The heartstopping, utterly up shit creek without a paddle part lay in the Standard Book of Spells, Grade 2, "Although this spell is safe to use on animals, it is not recommended until the counter-charm has been perfected."
Said counter-charm having been erased by one James Potter and replaced with a doodle of Severus Snape's buttocks that farted out, "Good luck, wanker!," and turned around to flip him the bird.
It was going to be a long night, with no chocolate.
A/N: This is my submission for the Shreiking Shack Society's December Drabble post. Hope you enjoy the silliness and Remus's internal potty mouth!