Once upon a time, Etwas the Elf was running through the forests of green grass, under the canopies of clover and around the stems of tall flowers when she found an ornate bottle, half buried in mud. She pulled it out of the damp and rubbed the soil until the bottle sparkled.
But not only did the bottle sparkle, it sang, and not only did it sing, it smoked and not only did it smoke but it spoke. "I am the genie of the bottle! I grant you three wishes!" The bottle heated up as the magic inside it awaited further instructions.
"I can't think of a thing better than a bottle that stays warm," thought Etwas, and carried the magic bottle home to her mushroom.
And ever since then, those who satisfy the fires of others' desires try to keep cool themselves.