So, say I was *actually* mouse-sized. (I'm not saying that I'm NOT, just imagine if I were.) This would be the best hot tub ever.
You know how when you go to a fancy steakhouse and your steak comes with a sumptuous hunk of cold, creamy butter on it? And it's just starting to melt and mingle with the meat's perfectly charred crust to make a mouthwatering, on-the-spot sauce? Compound butter is like that, but better.